Unanswerd puzzles under tag mathematical

+1 vote

How many coins would you have to pay in order to have the greatest expected loss?

posted 4 days ago by Puneet Batra

0 votes

Find Δh, the difference in elevation between each of the hanging points and the point half way between the two poles?

posted Oct 30 by Anshika Utadi

+1 vote

Can you guess my "nifty operator" (#) ?

posted Sep 5 by anonymous

+1 vote

If a^2 + b^2 + ab - b = 17, where a and b are integers, what is the sum of all possible values of a?

posted Sep 4 by anonymous

0 votes

Two circles with the same radius overlap each other with their circumferences cross each other's center....

posted Sep 3 by anonymous

0 votes

Find the next term in the series - 1, 0, -2, -3, 8, 95, ?

posted Aug 27 by Pushpak Chauhan

0 votes

From a square with sides of length 5 cm, triangular pieces from the four corners are removed to form a regular..........

posted Aug 12 by Nikhil Pandey

0 votes

A cricketer can throw a ball to a maximum horizontal distance of hundred metre...

posted Jul 23 by anonymous

0 votes

Logic with the missing number in the triangle?

posted Jul 6 by anonymous

+1 vote

What is the distance for BELGIUM?

posted Jun 5 by Afsana Akhter

–1 vote

A is a matrix of type 3 by 5 and R is a row of a what is the type of R as a metrics

posted Jun 3 by Ritu Aggarwal

–1 vote

A is a matrix of type 3 by 5 and R is a row of a what is the type of R as a metrics

posted Jun 3 by Ritu Aggarwal

0 votes

Let a be a single-digit positive integer. Let n be another....................Find the sum of all possible values of a.

posted May 31 by Vikram Luthra

0 votes

In triangle ABC, if angle B is 30, what is the range of CosASinC?

posted May 22 by anonymous

0 votes

A certain right pyramid with a square base has the same numerical surface area as its volume...

posted May 16 by anonymous

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If x^3 -1 is a factor of x^6 + a.x^4 + b.x^3 + c.x^2 + 3x + 2 then find the value of ab + bc + ac?

posted May 7 by anonymous

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64 numbers (not necessarily distinct) are placed on the squares of a chessboard such that sum of every 2x2 square is 7..

posted Apr 23 by anonymous

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Find the greatest positive integer n for which n is divisible by all positive integers whose cube is not greater than n?

posted Apr 23 by anonymous

0 votes

Continuous functions

posted Apr 17 by anonymous

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Every other side of a regular decagon is extended to form a regular pentagon, find the ratio of two shaded regions?

posted Apr 3 by anonymous

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A be a 2x3 matrix and B 3x2 matrix. If AxB and BxA both defined and determinant of matrix AxB is 4...

posted Apr 3 by anonymous

+1 vote

What is the area of the blue parallelogram?

posted Mar 1 by anonymous

0 votes

Which color you will choose to get money? [MCQ]

posted Feb 5 by anonymous

0 votes

Find the next term in the series- 0, 1, 2, 1, 1, 2, 3, 4, 5, 6, 24, ?

posted Jan 22 by Hanifa Mammadov

+1 vote

Two identical very thing rings. One lays flat on a table and the other stands inside it. They touch at four points...

posted Dec 28, 2018 by anonymous

+1 vote

What would be the missing number in the following image?

posted Dec 17, 2018 by anonymous

0 votes

Inside a square ABCD, a point P is selected such that AP = 1, BP = 2 and CP = 3. Find the angle APB?

posted Dec 5, 2018 by anonymous

+1 vote

Positive real numbers x and y are such that x^2 - 2x + 4y^2 = 0. Find the maximum value of xy?

posted Dec 5, 2018 by anonymous

+1 vote

A tosses a fair coin 50 times and B tosses another 51 times. What is the probability that B got more heads than A?

posted Dec 5, 2018 by anonymous

0 votes

Five circles are created to the maximum possible area in a hexagon, find the ratio of the grey region on the image?

posted Nov 15, 2018 by anonymous

+1 vote

How many squares can be formed in the following image by connecting four points of 8x8 grid?

posted Nov 15, 2018 by anonymous

0 votes

A puzzle consisting of 100 pieces. What is the minimum number of pieces I have to draw randomly from a pile...

posted Nov 11, 2018 by anonymous

+1 vote

What is the area of the red region if the angle of bigger mouth is double of the smaller mouth?

posted Oct 16, 2018 by anonymous

0 votes

Find the ratio of the length of large triangle vs small triangle?

posted Oct 15, 2018 by anonymous

0 votes

Arrange the cards as follows - All cards side by side in a line, any two adjacent cards are either same suit or rank...

posted Oct 6, 2018 by anonymous

+1 vote

370 cusec water output in one dam, how much if water output if water travels 10 km with 7 meter width in 10 minutes?

posted Aug 29, 2018 by Pandian Anu

+1 vote

Two telephone poles 30m high, 80m apart and connected by a 100m long cable. Distance of lowest point of cable to ground?

posted Aug 12, 2018 by anonymous

0 votes

What is the % of the area of the blue region as compare to the whole?

posted Aug 10, 2018 by anonymous

0 votes

Find the minimum distance between the curve y^2=4x and x^2 + y^2 -12x + 31 = 0?

posted Aug 1, 2018 by anonymous

0 votes

If we play the following game 1400 times, what is the expected number of games that I would win?

posted Jul 28, 2018 by anonymous

+1 vote

See the following triangle and tell what should be the length of KN?

posted Jul 28, 2018 by anonymous

0 votes

What is the length of AG where G is the centroid of triangle ABC?

posted Jul 8, 2018 by anonymous

+1 vote

Using points, straight lines, and parabola, construct a piecewise function whose graph looks like a smiling face

posted Jul 4, 2018 by anonymous

0 votes

Find the number in place of question mark

posted Jun 29, 2018 by Hanifa Mammadov

0 votes

E is a point inside triangle ABC such that AE=BE=BC and Angle ABE = Angle CBE = 20. Find the measure of Angle CAE?

posted Jun 26, 2018 by anonymous

0 votes

P is a point inside triangle ABC. Lines are drawn through P parallel to the sides of the triangle....

posted Jun 7, 2018 by anonymous

0 votes

As shown, a rectangle is partitioned into four triangles. Areas of two right triangles are 30 and 50....

posted May 24, 2018 by Rahul Chandel

+1 vote

The temperature on a unit sphere x^2 + y^2 + z^2 = 1, is given by a temperature distribution T(x,y,z) = 50.(xy + yz)...

posted May 24, 2018 by Rahul Chandel

–1 vote

What is the area of the blue region in the following image where all the numbered quadrilateral are square?

posted May 17, 2018 by Atif

0 votes

If A != B and A^n + B^n is an integer for all positive integers n, must A and B both be the integers? [MCQ]

posted May 17, 2018 by Mohammad