Unanswerd puzzles under tag mathematical

+1 vote

How many miles have they travelled so far?

posted 3 hours ago by Aarati Mahajan

0 votes

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

posted 2 days ago 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

0 votes

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

0 votes

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

0 votes

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

0 votes

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

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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

–1 vote

What is the direction opposite to the angle made with anticlockwise from north of a right angle?

posted Oct 11, 2018 by Upali Perera

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

If first 17 positive integers are rearranged into a sequence such that sum of any two adjacent is a perfect square...

posted May 31, 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

0 votes

Find the minimum surface area for a polycube composed of 2000 unit cubes?

posted May 17, 2018 by anonymous

–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

+1 vote

If a^b = 1; b^c = 2 and c^a = 3 and a,b,c are rational number then what is a + b + c = ?

posted May 16, 2018 by anonymous

0 votes

Four right triangles with distinct integer hypotenuses are put together to form a quadrilateral, as shown in image...

posted May 9, 2018 by Upma

+1 vote

A unit circle is divided into 12 congruent regions, as shown. What is the perimeter of one of these regions?

posted May 8, 2018 by anonymous

0 votes

You would like to have $35,000 in 5 years to purchase a new car. At the end of 2 years you receive a $10,000 bonus...

posted Apr 29, 2018 by anonymous

0 votes

Find the minimum value of n such that the equation 10^n/x = 1989 has an integer solution x where n is a natural number?

posted Apr 25, 2018 by anonymous

0 votes

You have to finish in a double game of darts, which number has most number of different ways of finishing with 2 darts?

posted Apr 25, 2018 by anonymous

+2 votes

What would be the coordinate of point P which divides the line joining A(-4,1) and B (17,10) in the ratio 1:2?

posted Apr 9, 2018 by Brijesh Makwana

+1 vote

If the radius of the circular sector is 100 units in the given image then what is the side length of the square ?

posted Apr 7, 2018 by anonymous

0 votes

In triangle ABC, reflection of triangle ABC's incenter over its side AB is its circumcenter. Find angle C in degrees?

posted Mar 27, 2018 by anonymous