Questions and answers by

Kaur

Questions (362)

Integrate by partial fraction(x^2-5x+6)/((2x+3)(x^2+4))
1. 3 answers
2. 330 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. 581 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. 1,507 views
A kite string 200m long makes an angle of 60degree with the ground. How high is the kite?
1. 1 answer
2. 334 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. 657 views
If matrix A =[cosx -sinx -cosx sinx -cosx sinx] Find A'A
1. 1 answer
2. 221 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. 250 views
if N = 4728x5y is divisible by 24 then find the possible Values of |x,y|
1. 2 answers
2. 283 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. 472 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. 1,379 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. 531 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. 234 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. 828 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. 792 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. 311 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. 281 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. 415 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. 359 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. 383 views
Find the median graphicallyCOLOURS NUMBER OF CARS Black 5 Blue 6 red 3 white 3 yellow 2 orange 1
1. 3 answers
2. 258 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. 2,240 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. 255 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. 305 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. 335 views
One of the foci of(y²/36) - (x^2/64) = 1 is
1. 1 answer
2. 245 views
The number of values of 0 = [0, π] satisfying the equationsin6theta + sin4theta + sin2theta = 0 is
1. 4 answers
2. 318 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. 593 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. 306 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. 304 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. 604 views
Let g(x)=3^x - x^5.What are the intervals if the equation g(x) = 0?
1. 1 answer
2. 238 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. 218 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. 437 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. 228 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. 243 views
If (costheta + i sintheta) (cos2theta+ isin2theta) (cos3theta + i sin3theta).............(cos2ntheta + isin2ntheta) = 1, then
1. 1 answer
2. 300 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. 347 views
If sin x = - cos x and x is in 4th quadrant, find sin (x/2) and cos (x/2)
1. 1 answer
2. 250 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. 363 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. 376 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. 582 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. 389 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. 410 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. 356 views
The negation of the statement:"If Ludhiana is in Punjab, then Mumbai is in India"
1. 1 answer
2. 302 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. 605 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. 525 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. 436 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. 208 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. 348 views
Find the area bounded by the curvesy = x^2, y = (x - 2)^2 and the x-axis.
1. 1 answer
2. 312 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. 765 views
Formula ofn(B/A) in sets
1. 1 answer
2. 205 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. 361 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. 302 views
Under what conditions A x B= C x D implies A = C and B = D?
1. 1 answer
2. 235 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. 636 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. 267 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. 300 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. 348 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. 421 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. 293 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. 335 views
I got the wrong answer...So posting again..... Integrate (cosx)/((2+sinx)(3-sinx)) dx
1. 3 answers
2. 402 views
Integrate(cosx)/((2+sinx)(3-sinx)) dx
1. 1 answer
2. 297 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. 374 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. 419 views
One of the natural numbers of a number is likely to be pair -_---What is the answer for this??
1. 5 answers
2. 1,479 views
One of the natural numbers of a number is likely to be pair
1. 1 answer
2. 230 views
If (x - 1)(y + 3) = 0 what can you say about x if y = -3?Not getting???
1. 1 answer
2. 162 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. 293 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. 389 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. 205 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. 321 views
find the derivative of tan^ 3 x using first principle
1. 1 answer
2. 321 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. 521 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. 1,218 views
Find anti-derivative of(sinx + 3cosecx)^2 + cos^2x
1. 1 answer
2. 1,942 views
Number of cuboids with dimensions8cm x 15cm x 20cm stacked together to form a cube is
1. 1 answer
2. 1,061 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. 399 views
Consider a function f(x) = x^2 + e^x then f'(f(0)) is equal to
1. 2 answers
2. 422 views
Find the sum of all multiples of 5 lie between 19 to 556.
1. 2 answers
2. 245 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. 356 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. 412 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. 442 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. 296 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. 289 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. 362 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. 324 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. 393 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. 421 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. 354 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. 311 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. 495 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. 394 views
An electronics firm manufactures printed circuit boards and specialized electronics devices.Final assembly operations are
1. 1 answer
2. 562 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. 351 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. 306 views
Find the general solution of equationsinx + cosx = 2 (root2) (sinx)(cosx)
1. 4 answers
2. 820 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. 447 views