Questions and answers by

Kaur

Questions (362)

Integrate by partial fraction(x^2-5x+6)/((2x+3)(x^2+4))
1. 3 answers
2. 313 views
Calculate the median of the following data:MARKS Above 25 Above 35 Above 45 Above 55 Above 65 Above 75 NUMBER OF STUDENTS 52 47
1. 2 answers
2. 563 views
A boy and a girl are two friends from the same college and they were studying in ornithology. It is a branch of zoology which
1. 2 answers
2. 1,484 views
A kite string 200m long makes an angle of 60degree with the ground. How high is the kite?
1. 1 answer
2. 318 views
X, Y, Z enter into a partnership venture with a capital of Rs.1,20,000, in which the contribution of Y and Z are respectively,
1. 1 answer
2. 639 views
If matrix A =[cosx -sinx -cosx sinx -cosx sinx] Find A'A
1. 1 answer
2. 201 views
if N = 4728a5b is divisible by 24 then find the possible Values of |a,b|Note: its not a^5
1. 2 answers
2. 235 views
if N = 4728x5y is divisible by 24 then find the possible Values of |x,y|
1. 2 answers
2. 266 views
6.5 litres of milk is distributed among 65 students, out of which 30 are boys and rest are girls. Find the quantity of milk each
1. 1 answer
2. 457 views
Meena wants to make a toy for her younger brother. The toy is in the shape of a hemisphere surmounted by a cone. If the radius
1. 3 answers
2. 1,348 views
when 123 is added to a perfect square number, the new number, so formed also becomes a perfect square. what is the square root
1. 1 answer
2. 509 views
If the points (–1, 2, 3), (4, a, 1) and(b, 8, 5) are collinear, then a and b are respectively equal to
1. 1 answer
2. 219 views
A 2009 digit number is multiplied by 54. The last two digits of the product are 6 and 8 in this order.If the same number is
1. 2 answers
2. 799 views
the numbers 52, 32, 12, 43, 25, 18, 56, 36, 16, 50 are grouped in pairs in such a way that the sum of each pair is the same. the
1. 4 answers
2. 772 views
chord AB and CD when produced meet at point P.If ∠AOC=θ,∠BOD=α then prove that ∠APC= (θ−α)/2 ( O is the centre of
1. 1 answer
2. 290 views
Find the number of permutations of letter of the word KAPIL(i) When P is always in the middle. (ii) When vowels occupy odd
1. 0 answers
2. 252 views
If PQ is the tangent toa circle with center O. PQ = 36 cm and AQ=24 cm. Find the radius of the circle
1. 1 answer
2. 398 views
The nth term of an AP is given as 2n+ 4 . Write the first three terms of this AP . Find the 40th term of the AP . Also , find
1. 1 answer
2. 340 views
Find the number of permutations of letter of the word KAPIL(i) When P is always in the middle. (ii) When vowels occupy odd
1. 0 answers
2. 352 views
Find the median graphicallyCOLOURS NUMBER OF CARS Black 5 Blue 6 red 3 white 3 yellow 2 orange 1
1. 3 answers
2. 235 views
A sum of 2000 is invested at 6% simple interest per annum.(i) Calculate the interests at the end of 1, 2, 3.... years. (ii) Does
1. 2 answers
2. 2,215 views
chord AB and CD when produced meet at point P.If ∠AOC=θ,∠BOD=α then prove that ∠APC= (θ−α)/2 ( O is the centre of
1. 0 answers
2. 232 views
In the figure chord AB and CD when produced meet at point P.If ∠AOC=θ,∠BOD=α then prove that ∠APC= (θ−α)/2 ( O is
1. 0 answers
2. 283 views
ABCD is a quadrilateral in which diagonals intersect at 90 degree.Given, AB = 6cm, CD = 5cm and DA = 6cm. Find side BC
1. 2 answers
2. 312 views
One of the foci of(y²/36) - (x^2/64) = 1 is
1. 1 answer
2. 229 views
The number of values of 0 = [0, π] satisfying the equationsin6theta + sin4theta + sin2theta = 0 is
1. 4 answers
2. 301 views
A bag contains 4 white and 5 black balls . Another bag contains 5 white and 7 black balls . A ball is transferred from the first
1. 1 answer
2. 569 views
if choosing one number from 0 to 100 randomly.find the probability that a number chosen is of last digit is greater than first
1. 1 answer
2. 277 views
In a lottery, tickets are numbered using the digits 0, 1, 2, 5, 7, 8 and the numbers on tickets should be distinct and not start
1. 2 answers
2. 285 views
During lockdown, Mr. X decided to distribute free packets of various kinds of milk. Actually price of 1litre of full fat,single
1. 2 answers
2. 571 views
Let g(x)=3^x - x^5.What are the intervals if the equation g(x) = 0?
1. 1 answer
2. 223 views
A few young enthusiastic boys and girls went on a trekking trip to the Western Ghats.They trekked for 17 days and came back on
1. 1 answer
2. 204 views
if choosing one number from 0 to 100 randomly.find the probability that a number chosen is of last digit is greater than first
1. 3 answers
2. 409 views
There are 18 packets of red tea in a shelf. How many more red tea packets would fit in the shelf?How come 42 @oobleck
1. 2 answers
2. 215 views
There are 18 packets of Green tea in a shelf. How many more Green tea packetswould fit in the shelf?
1. 1 answer
2. 235 views
If (costheta + i sintheta) (cos2theta+ isin2theta) (cos3theta + i sin3theta).............(cos2ntheta + isin2ntheta) = 1, then
1. 1 answer
2. 279 views
From a pack of 52 playing cards, 4 cards are drawn one by one with replacement. Find the following probabilities:a) P(to get 4
1. 1 answer
2. 336 views
If sin x = - cos x and x is in 4th quadrant, find sin (x/2) and cos (x/2)
1. 1 answer
2. 236 views
Mandy and Josh work together on Market Day at their school. They split the profitinto the ratio 2:3 respectively. They make a
1. 1 answer
2. 331 views
Robert and Luke are two brothers. Their father divides Rs.7 569 between them such that Robert's share at the end of 9 years is
1. 1 answer
2. 358 views
a typist uses a paper of size 32 cm × 20 cm. he leaves a margin of 2 cm each on all the sides .if he leaves a margin of 1 cm
1. 1 answer
2. 554 views
Without using tables, evaluate:(4 tan 60° sec 30° ) + [(sin 31 sec 59° + cot 59° cot 31°)/ (8 sin² 30°-tan² 45°)]
1. 2 answers
2. 375 views
In a cone what will happen to the curved surface area if radius is halved and slant height is doubled
1. 1 answer
2. 394 views
Find the area of a rhombus whose one side is equal to 10 cm and the length of one of the diagonals is 12 cm.
1. 1 answer
2. 341 views
The negation of the statement:"If Ludhiana is in Punjab, then Mumbai is in India"
1. 1 answer
2. 278 views
There are 5 wrong questions in a question paper, consisting of 10 questions. If 6 questions are selected from this question
1. 1 answer
2. 580 views
A man purchased a home with thehelp of a bank loan. He plans to pay back the entire debt of Rs. 3,30,600 in monthly instalments,
1. 2 answers
2. 508 views
Ramesh purchased a home with thehelp of a bank loan. He plans to pay back the entire debt of Rs. 3,30,600 in monthly
1. 0 answers
2. 419 views
If 3sin^(2)x-7sin x +2=0, x in [0,(pi)/(2)] andf(n)(theta)=sin^(n) theta + cos^(n) theta. On the basis of above information, the
1. 1 answer
2. 198 views
Consider the following equations of curves y cos x, y=x+1 and y=0Based on the above information, Answer the following questions
1. 1 answer
2. 320 views
Find the area bounded by the curvesy = x^2, y = (x - 2)^2 and the x-axis.
1. 1 answer
2. 295 views
The internal dimensions of a rectangular closed wooden box are 30 cm , 18 cm and 23 cm.What space will it occupy ( in cm^3) if
1. 1 answer
2. 741 views
Formula ofn(B/A) in sets
1. 1 answer
2. 191 views
A man bought two cars for Rs 1,30,000each .He sold one car at a profit of 10 % and he another car at a loss of 5%.Find :1 What
1. 1 answer
2. 339 views
How many different words can be formed with the letters of the word TRIANGLE, so that the new words formed begin withR and end
1. 1 answer
2. 286 views
Under what conditions A x B= C x D implies A = C and B = D?
1. 1 answer
2. 219 views
Riya made a container using metal sheets such that the container is in the shape of cuboid surmounted by a half cylinder. If the
1. 2 answers
2. 600 views
I have written again as there is no format of making table so I have written in a lineThe following table gives the data of 100
1. 0 answers
2. 245 views
I am posting again due to formatting reason in previous oneThe following table gives the data of 100 drivers who work in Jaipur.
1. 1 answer
2. 281 views
The following table gives the data of 100 drivers who work in Jaipur.Age of 1 2 more than 2 driver accident accidents accidents
1. 1 answer
2. 328 views
Riya made a container using metal sheets such that the container is in the shape of cuboid surmounted by a half cylinder. If the
1. 1 answer
2. 391 views
Alice, Bernard and Colin draw 3 cards each from nine cards numbered from 1 to 9.Alice: The product of my numbers is 48. Bernard:
1. 1 answer
2. 277 views
Which solution is correct for following question?????A man bought 300 bananas at Rs 18 per dozen and sold them at a loss of Rs
1. 1 answer
2. 306 views
I got the wrong answer...So posting again..... Integrate (cosx)/((2+sinx)(3-sinx)) dx
1. 3 answers
2. 385 views
Integrate(cosx)/((2+sinx)(3-sinx)) dx
1. 1 answer
2. 265 views
A man bought 300 bananas at Rs 18 per dozen and sold them at a loss of Rs 75. What is the selling price of 10 bananas?
1. 1 answer
2. 351 views
A fruit seller bought 300 bananas at Rs 18 per dozen and sold them at a loss of Rs 75. What is the selling price of 10 bananas?
1. 3 answers
2. 386 views
One of the natural numbers of a number is likely to be pair -_---What is the answer for this??
1. 5 answers
2. 1,463 views
One of the natural numbers of a number is likely to be pair
1. 1 answer
2. 220 views
If (x - 1)(y + 3) = 0 what can you say about x if y = -3?Not getting???
1. 1 answer
2. 150 views
The height of 40 boys of class VIII are measured in nearest centimetres as follows:-140, 151, 152, 154, 142, 161, 143, 151, 149,
1. 1 answer
2. 274 views
The height of 40 students of class VIII are measured in nearest centimetres as follows:-140, 151, 152, 154, 142, 161, 143, 151,
1. 0 answers
2. 371 views
If (x - 1)(y + 3) = 0 what can you say:a) About x if y = -3? b) About x if y = 2?
1. 1 answer
2. 194 views
Given below is a population chart regarding different ages. Read it carefully and answer the questions.Age group Frequency 01-10
1. 1 answer
2. 305 views
find the derivative of tan^ 3 x using first principle
1. 1 answer
2. 290 views
line segment joining the midpoints of two parallel chords of a circle passes through the centre. AB and CD are two equal chords
1. 1 answer
2. 491 views
If the sum of the G.P is 63.5 except for the first term,sum is 127 except the last one, and the sum is 31.5 except the first two
1. 1 answer
2. 1,192 views
Find anti-derivative of(sinx + 3cosecx)^2 + cos^2x
1. 1 answer
2. 1,918 views
Number of cuboids with dimensions8cm x 15cm x 20cm stacked together to form a cube is
1. 1 answer
2. 1,043 views
What would be the day of the week on31st March of a leap year? Information 1: The day of the week on 31st March is either
1. 1 answer
2. 378 views
Consider a function f(x) = x^2 + e^x then f'(f(0)) is equal to
1. 2 answers
2. 403 views
Find the sum of all multiples of 5 lie between 19 to 556.
1. 2 answers
2. 225 views
Obtain a quadratic polynomialp(x) = ax² + bx+c, where sum of zeros is √2 and product of zeros is 1/3 a < 0.
1. 1 answer
2. 336 views
The shadow of a tree on the ground is found to be 20m when the sun rays meet the ground at an angle of 30 degree. Find the
1. 2 answers
2. 385 views
A cistern can be filled separately by two pipes P and Q in 45 min and 35 min respectively. A tap R at the bottom can empty the
1. 1 answer
2. 418 views
a wholesaler sells a product with 20% profit to a retail seller who again sells it with 20% profit, if the selling price of the
1. 1 answer
2. 276 views
A can do a certain work in 50 days. B is 35% more efficient than A, and C is 30% more efficient than B. A and B work together
1. 2 answers
2. 270 views
A can do a certain work in 30 days. B is 25% more efficient than A, and C is 20% more efficient than B. A and B work together
1. 3 answers
2. 324 views
Raj has built a cubical water tank with lid for his house with each outer edge 3 m long. He gets the outer surface of the tank
1. 3 answers
2. 304 views
Insert mathematical symbols (+, -, /,x,) in the following rows to make a correct equations..4 4 4 4 4 = 17 5 5 5 5 5 = 26
1. 1 answer
2. 366 views
In how many ways a committee of 5 men and 3 women can be formed from 8 men and 5 women?
1. 1 answer
2. 385 views
The equation of circle passing throughintersection points of two circles is given by S₁ + lamda S₂ = 0 (where S 1 and S2 are
1. 1 answer
2. 338 views
The equation of circle passing through the intersection points of the circlesx² + y² - 2x - 6y + 9 = 0 and x^2 + y^2 - 4x - 8
1. 1 answer
2. 289 views
The letters of the word 'MULTIPLE' arearranged in all possible ways. Then The number of arrangements in which the order of the
1. 2 answers
2. 468 views
The equation of circle passing throughintersection points of two circles is given by S₁ + AS₂ = 0 (where S₁ and S2 are the
1. 1 answer
2. 375 views
An electronics firm manufactures printed circuit boards and specialized electronics devices.Final assembly operations are
1. 1 answer
2. 522 views
If a spherical medicine with radius r is broken down in to the 1000 spherical small tablets then the CSA of original spherical 6
1. 3 answers
2. 326 views
Compute the probability (as a fraction) that the number thrown on a six sided die is a factor of the number thrown on 20 sided
1. 1 answer
2. 286 views
Find the general solution of equationsinx + cosx = 2 (root2) (sinx)(cosx)
1. 4 answers
2. 795 views
If 12 is added to each term of the AP : -12,-9,-6,...,21 thenwhich of the following is true about the sum of all terms of the AP
1. 1 answer
2. 428 views