kumar

This page lists questions and answers that were posted by visitors named kumar.

Questions

The following questions were asked by visitors named kumar.

What resources does an International Internet retailer need other than merely a storefront on the Internet? Does it require fewer physical, financial, and human resources than a traditional retailer, or just as many? Explain.

(x/2)+(x/4)+(x/8)=(x-(1/2)) variable domain {(5/7),(6/7),(4/8),(3/7),(2/7)

sir ple. tell me how to make 9v dc motor how many coil turns i have to make.

If y = 18x+5 is the regression line of x on y then the value of bxy is what ?

Bill Gates didn't _______ ( seem )like a shoe-in for success after dropping out of Harvard and starting a failed first bussiness with Microsoft co- founder Paul Allen ______ ( Call ) Traf O- Data . While this early idea didn't work , Gates ' later , _____...

A number on being divided by 10 and 11 successively leaves the remainders 5 and 7. Find the number.

A number on being divided by 10 and 11 successively leaves the remainders 5 and 7. Find the number. ie, x/10 = remainder 5 and x/11 = remainder 7. please help me to find the value of x.

HELP ME PLEASE ---- + ------ + ------- = 30 [Using numbers 1,3,5,7,9,11,13 &15]

1.Without using Pythagorus theorm, prove that the points (-4,-3), (-2,2),(8,-2)are the vertices of a right angled triangle. 2. The 3 vertices of a parallelogram taken in order are (3,4),(-2,3), (-3,-2).Find the coordinates of the fourth vertex ?

A teacher driving his vehicle at 24 kmph reaches her school 5 minutes late.If She had driven the vehicle 25% faster on an average she would have reached 4 minutes earlier than the scheduled time. How far is her school ?

Ram divided a sum of Rs.3873 among his three sons. His youngest son got 35% less than his oldest son who got 35% more than his second son. Find the share of his second son

An arithmetic progression has 10 terms. Sum of the 10 terms is 220. Sum of the odd terms is 100. Find the first term and common difference. pl give me the answer.

An arithmetic progression has 10 terms. Sum of the 10 terms is 220. Sum of the odd terms is 100. Find the first term and common difference. pl give me the answer. maths - Steve Monday, July 17, 2017 at 12:11pm 10/2 (2a+9d) = 220 5/2 (2a+4*2d) = 100 maths...

If a/b =c/d , a^3c + ac^3 = (a+c)^4 show that ----------- ------- b^3d + bd^3 (b+d)^4 pl help.

If a/b =c/d , show that a^3c + ac^3 = (a+c)^4 ----------- ------- b^3d + bd^3 (b+d)^4 pl help.

A sum of money becomes 3 times of itself in 20 years. Find its rate of interest?

Of three numbers, second is twice the first and is also thrice the third. If the average of three numbers is 44, find the largest.

By increasing the speed of a car by 10km/hr the time of journey for a distance of 72 km is reduced by 36 min. Find the original speed of the car ?

Find four numbers in AP whose sum is 20 and sum of whose squares is 120.

If 6men can do a piece of work in 20 days and one man can do a work of 2 boys.Find how many days can 10 men and 5 boys do the same work ?

20 % of [(7+5-3/12)-6] = ?

sin^2 28*+ sin^2 62* + tan^2 38*- cot^2 52*+ 1/4 sec^2 30* = ?

If the cost price of an item is 25% of its selling price , what is the % of profit ?

At what rate of % per annum, will the simple interest on a sum of money become 3/4 of the principal in 6 yrs ?

X and Y can together complete a wk in 3 days. If X alone can complete the work in 9 days. In how many days can Y alone complete the work ?

Raman completes 50% of a wk in 10 days. Mohan then joins Raman on the 11th day and they together complete the remaining wk in 2 days.How long will take if the entire wk is entrusted to Mohan alone ?

With a uniform speed a car covers a certain distance in 8 hrs. If the speed of the car is increased by 4 km per hour , the same distance can be covered in 7 1/2hrs.Find the distance covered ?

Prove SinA/1-CosA = CosecA + CotA

he sum of two numbers is 15 the sum of the squares of the same two numbers is 172 fined the difference between the two numbers

Prove that [1+cotA-CosecA] [1+tanA+secA] = 2

sinA+cosA=p and secA+CosecA=q then show that q[p^2-1]=2p

If cosA + sinA= root2 cosA Show that cosA - sinA= root2 sinA

Show that [1+1/tan^2A][1+1/cot^2A] = 1/sin^2A-sin^4A

A train travels 360 km at uniform speed . if the speed had been 5 km / hr more it would have taken 1 hour less for the same journey. find the speed of the train. pl give me a short cut method to solve.

A and B can do a piece of work in 10 days, B and C in 15 days and A and C in 12 days. A,B and C work together to finish the work. If they are paid 15000, find the share of each?

4 men & 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it?

A man covered a certain distance at some speed. Had he moved 3 kmph faster, he would have taken 40 minutes less. If he had moved 2 kmph slower, he would have taken 40 minutes more. The distance (in km) is:

posted by kumar Thursday, March 15, 2018 at 11:51am. 4 men & 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it? maths - Reiny Thursday, March 15, 2018 at 1:50pm man's rate...

If [x-y]^2=12 , and xy=2 . Find x^2+y^2. pl help.

What time will a runner take to run a distance of 8 km at a speed of 15 km/hr?

If square of a number ends with 5,then its cube ends with 25 . Is the statement correct ?

A and B entered into partnership with capitals in the ratio 4: 5. After 3 months, A withdrew ¼ of his capital and B withdrew 1/5 of his capital. The gain at the end of 10 months was Rs. 760. A's share in this profit is:

A wheel revolves 1254 times in travelling a distance of 2kms 5 hectometers and 8 meters .find the circumference of the wheel .

In a class of 50 students 25 take hindi and 16 take marathi.12 students take no languages. Find how many takes both hindi and marathi.

A piece of cloth costs Rs.35. If the piece were 4m longer and each meter were to cost Rs.1 lesser,then the total cost would remain unchanged. Find the length of the piece of cloth ?

2 poles of height 15m and 20m stand vertically upstraight on a plane ground. If the distance between their feet is 12m. Find the distance between their tops ?

simplify - 4.6*-4.6/(-4.6+0.6)

2 cos ( x – pie/2) + 3 sin (x + pie/2) - (3sin x + 2cos x )

If the length and breadth of a rectangle is increased by 25%,find the difference between the areas of the old and new rectangles. [Hint: Ans.9LB/16Sqcm.] ??

The product of 2 numbers is 24,and the sum of their squares are 52.Find their sum.

Sundaram joined a company for a fixed salary per month. After few months, the management felt happy with his work and multiplied his salary by some n times. This happened every few months and his salary kept getting multiplied and he reached a salary of 3...

1. If the graph of a polynomial intersects the x – axis at three points, then the number of zeroes = _____ Q2 . The zero of the polynomial p(x) = ax +b is ______________

If x=22x3x52 and y=22x33 then HCF[xy] = ?

Yash designs and builds handmade wooden furniture. He is designing a new box to have a volume of 48 cubic feet. All the boxes he built are 2 feet wider than their height and 2 feet longer than their width. a) Represent the volume of the box with a polynom...

A boat goes 30km upstream and 28km downstream in 10 hours. In 7 hours, it can go 21 km upstream and 21 km downstream then to return downstream to the same spot. Find the speed of stream and that of the boat in still water and speed of the stream.

Find the coordinates of two more points on the line joining (-1, 4) and (1, 2).

If A = {(x, y)/x^2 + y^2 = 25} and B{(x, y)/x^2 + 9y^2 = 144} then A ∩ B contains how many points.

the distance between the pair of parallel lines x^2+2xy+y^2-6x-6y+8=0 is-------------

The following errors were detected in the books of Shreay Ltd. while preparing the final accounts:(i) A Cheque received for ~ 3,100from Franc & Co. was dishonoured and debited to discount account(ii) The sales account has been totalled short by ~ 23,000(i...

Stock on 15 th April, 2008 is~ 50,000. Purchases made in 2 ndweek is ~ 2000, sales made in 2 ndweek is ~ 12,000 Gross Profit onSales is 25%. Closing stock as on31"t March, 2008 will be: (a) ~ 75,000 (b) ~ 57,000 (c) ~ 60,000 (d) ~ 50,000

OPENING DEBTORS ~ 35,000 Cash Received fromDebtors is ~ 30,000 Cash sales is~ 20,000 which is 20% of totalsales. B/R Received for ~ 40,000and discount allowed is 1 % of cashcollection.Find the closing debtors. * 1 point (a) ~ 15,300 (b) ~ 44,700 . (c) ~ 6...

8 x cubed -7 x squared + 10 x - 5 divided by 2 X + 1

An agency supplies bread and jams to three places -a hospital, a bank and a school. Bread comes in a bunch of 8 pieces and Jam comes in a pack of 6 pieces. On a particular day, agency has supplied x packets of bread and y packets of jam to the school. On...

Answers

The following answers were posted by visitors named kumar.

T 4/sqrt (4^2+10^2) DOES NOT EQUAL 24.5

ignore my last comment i'm an idiot

@ Greco u done for this q8??? need help A ruler stands vertically against a wall. It is given a tiny impulse at θ=0∘ such that it starts falling down under the influence of gravity. You can consider that the initial angular velocity is very small so that...

hai BW I USED the above formula and i got b and c wrong i got negative value plz can u help m ???? this is my question A block of mass m= 2 kg is initially at rest on a horizontal surface. At time t=0, we begin pushing on it with a horizontal force that v...

Thanks #Greco for nizo ans got it too!!! A ruler stands vertically against a wall. It is given a tiny impulse at θ=0∘ such that it starts falling down under the influence of gravity. You can consider that the initial angular velocity is very small so that...

hai Teresa can u help me for this Rocket question i don't know how to get 0.955 in the above ans ! Consider a rocket in space that ejects burned fuel at a speed of vex= 2.0 km/s with respect to the rocket. The rocket burns 11 % of its mass in 250 s (assum...

for a) use this formula w=sqrt(3*g(1-costheta)/L)

any one got b and c help plz!

Greco plz help ! i try using that formula but is not working this is my question Consider a rocket in space that ejects burned fuel at a speed of vex= 2.0 km/s with respect to the rocket. The rocket burns 11 % of its mass in 250 s (assume the burn rate is...

woooooooooo thx @Hw !did u got this correct Consider a rocket in space that ejects burned fuel at a speed of vex= 2.0 km/s with respect to the rocket. The rocket burns 11 % of its mass in 250 s (assume the burn rate is constant). (a) What is the speed v o...

@fima hw u got alpha i use your value and i got alpha=40 ! how u got 50??

hai anonymous hw @fima got alpha =50 i used his value and got 40 hint plz!

PLZ WHERE IS PARATHESE I DONT'SEE THIS CLEAR alpha=3*mg/2*sin(theta)/L ax = -L/2*sin(theta) w^2 + L/2*cos(theta) alpha Fx=m*ax Fy=m*g*cos(theta)-m*w^2*r

HAI vivop if u got green tick on this plz help m c onsider a rocket in space that ejects burned fuel at a speed of vex= 2.0 km/s with respect to the rocket. The rocket burns 11 % of its mass in 250 s (assume the burn rate is constant). (a) What is the spe...

da can u help m for above question rocket onsider a rocket in space that ejects burned fuel at a speed of vex= 2.0 km/s with respect to the rocket. The rocket burns 11 % of its mass in 250 s (assume the burn rate is constant). (a) What is the speed v of t...

hai #Greco i really appreciate for this rocket question ! i mean it ! thx !

hai @ Bobpursely i try with this hint u give us and i used mu=1.256*10^-6 but is not work , did u got green check using above formula ????? thanks !

hai anonymous ,i stuck on dis question if u done for it plz help ???

0.001 is wrong @MARC , did u got green check with that value ??? plz help ???

X+y= -62 2x+y = 41 ------------------ 2x+2y= -124 2x+y= 41 - - - --------------------- Y= 175

116cm - 40 = 76cm. 76cm/2 = 38cm. length of 1st pieces = 38cm. length of 2nd pieces = 38cm+40cm =78cm

Following Ms.Sue's steps the answer =33 - 23 = 10 & = 49/42 - 24/42 = 25/42. So ie. = 10 25/42.

sir, I get the answer First term = 18.4 common difference = 4/5 is it correct ?

sorry.its my mistake. 10/2(2a+9d)=220 5 (2a+9d)=220 (2a+9d)=220/5=44..........[1] 5/2(2a+4x2d)=100 2.5(2a+8d)=100 (2a+8d)=100/2.5=40.......[2] [1]-[2]=d=4 :. 2a+32=40 a=4

Take LCM of 18,25,and 35 = 3150 multiplied by 3 = 3150 * 3 = 9450

if bundle means basket,then number of books = 144 * 100 = 14400

pl explain how can we find z. what is the answer.

If the smallest number is x. 3x + [3x-3] + x = 35><30. ie. 7x + 3 = 32. x = 35/7 = 5. 15 + 12 + 5 = 32.

sorry . correction in the question. 20 % of 5+ 8 [(7+5-3/12)-6] = ? Plz help. Ans. [a] 89 [b] 84 [c] 44 [d] 47

5+ 8 [(12-1/4)-6] 5+ 8 [48-1/4) -6] 5+ 8 [47/4-6] 5+ 8 [47-24/4] 5+ 8 [23/4] 5+ 8*23/4 5+ 46 = 51 ??

ok.I got it. 20% of 5 is 1. so 1+ 46 = 47. option [d].

a+b=1250 a+c=1060 ----------------- 2a+b+c =2310 - b+c =1830 -------------- 2a =480 a =240 240+b =1250 b =1010 240+c =1060 c= 820.

yes. I Got the answer. 10 and 40. Thankyou. Sir,any short cuts for solving this pblm.

Thankyou very much sir.

ok. Thank you sir. I have a doubt. 4m+6w=8 ........[1] 3m+7w=10 ......[2] [2]*4 = 12m+28w=40 [1]*3 = 12m+18w=24 ......................................... [2]-[1]= 0 + 10W = 16 Days. Is it correct ? plz advice.

thankyou sir. sir, any other simple way to solve this pblm.

I have one more doubt. if the work is same, then [ 4m+6w]8 = [3m+7w]10 32m+48w = 30m+70w 2m=22w : 1m=11w put it in equation 3m+7w=10 33w+7w=40w=10days so,10 women = 40 days. out of these 2 answers which one is correct ? Sir, plz advice.

posted by kumar Thursday, March 15, 2018 at 11:51am. 4 men & 6 women can complete a work in 8 days, while 3 men and 7 women can complete it in 10 days. In how many days will 10 women complete it? maths - Reiny Thursday, March 15, 2018 at 1:50pm man's rate...

ok. so 4 men & 6 women takes = 8 days, 3 men & 7 women takes = 10 days. and 10 women takes = 400 days. thankyou sir.

[x-y]^2= x^2+y^2-2xy 12= x^2+Y^2-2*2 So, x^2+Y^2=12+4=16 Is this correct sir ?.

Given F1= -4 So F15= F1+14d=-4+14d=2[F1+4d]=2F1+8d -4+14d=2*-4+8d=-8+8d 14d-8d=-8+4 6d=-4 d=-4/6=-2/3 F12=F1+11d=-4+11*2/3=-4+22/3=-12+22/3=10/3=3 1/3

Non english books = 650*2/5=130*2=260 books.

SIR, HOW WILL U GET THE ANSWER ?

3/10+2/100+6/1000

5a-4b-2a+4b-9a+12b 5a-2a-9a-4b+4b+12b 5a-11a-4b+16b -6a+12b 12b-6a

Thank u so much sir.

sir Can u please explain the steps

a) Represent the volume of the box with a polynomial in ‘x’. ls it, x3 -0x2 -4x -48 = 0 .correct sir. c) Identify all the zeroes of the polynomial so obtained. sir, how can we find out the zeroes.

Here, AE[20cm] - AD[15cm] = DE [5cm] BE[10cm] - DE[5cm] = BD [5cm] BC = CD = 2.5 cm. so, AC = AD[15cm] - CD[2.5cm] = 12.5cm. ----------------------------------------------------------------------------------- A B C D E

sir, l got on solving 6w = 1/40 1w = 1/240 so 10w = 1/240 x 10 =1/24 = 24 days . ls it correct sir.

-2(m-30)=6m -2m + 60 =6m 60 = 6m + 2m = 8m m = 60/8 = 15/2.

A = 6 s^2 A = 6 x 4.5^2 A = 6 x 20.25 A = 121.50 cm^2

2x + y = 30x + 15y

a1=54 ,a4= 2 a1 + 3d =2 a1 =54 ---------------- 3d = -52 d = -52/3 s5 =n/2[2a+(n-1)d] = 5/2[2x54+ 4x-52/3] = 5/2[108-208/3] = 5/2[324-208/3] =5/2[116/3] =5x116/2x3 = 580/6 = 290/3

chaus age + 21 = 69 chaus age = 69 - 21 = 48.

f1=2, d=3 sum=n/2[2a+(n-1)d] =11/2[2x2+(11-1)3] =11/2[4+10x3] = 11/2[34] = 11x17 =187

P = 2[L+B]=96 L= 14+B L+B =96/2 =48 14+B+B =48 2B = 48-14=34 B = 34/2 =17m L = 17+ 14 =31m.

a. M= [x1+x2/2,y1+y2/2] A=[2,8] C= [4,2] =[2+4/2,8+2/2] = [6/3,10/2]= [3,5] b. slope = y2-y1/x2-x1 A =[2,8] B = 14,4] = 4-8/14-2 = -4/12 = -1/3

c. slope = -1/3, passing through [3,5] equation of the line = [y-5] = -1/3[x-3] = 3[y-5] = -1[x-3] = 3y-15 = -x+3 = x+ 3y -18= 0

75000 + 34*55000= 75000 + 1870000 = 1945000.

B and D 2/8 = 1/4 5/20 =1/4