Recent puzzles under tag mathematical

0 votes

Probability questions - an easy one and a hard one:

posted Nov 6, 2016 by George Davros

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Which symbol should replace the question mark?

posted Nov 4, 2016 by Anamika

+1 vote

Shikhar and Virat Kohli were batting on 94. Seven runs were required to win by the team and only three balls were left..

posted Nov 3, 2016 by Mahedra Chaudhari

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If A’s income is 72% more than B’s, then how much % is B’s income less than A’s?

posted Nov 3, 2016 by anonymous

+2 votes

[] + [] + [] = 30 Fill the boxes using one of these numbers 1, 3, 5, 7, 9, 11, 13, 15 You can also repeat the numbers.

posted Nov 2, 2016 by Rahul Chandel

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Where will you buy the iPhone from to get the best discount and why?

posted Nov 2, 2016 by Ankur Athari

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Which term of the Geometric Progression 5,10,20,40...is 5120?

posted Oct 28, 2016 by anonymous

+1 vote

A man during his life had three wives. His first wife.............He died at age 86. How long was his third marriage ?

posted Oct 27, 2016 by Pankaj Deshmukh

+1 vote

What is the perimeter of square circumscribed about a circle of radius of 4r?

posted Oct 26, 2016 by Amarvansh

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Two teachers met after a long time The first teacher asked the 2nd teacher: “How old is your son?” The 2nd........

posted Oct 25, 2016 by Parampreet Kaur

+2 votes

A probability question, fill in the blank:

posted Oct 24, 2016 by George Davros

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How to solve this?? 5+64:4:2x3-0x4

posted Oct 22, 2016 by Muskaan Ganglani

+4 votes

If 3+5=6, 2+7=5, 3+9=9 then what does 2+6=?

posted Oct 20, 2016 by anonymous

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Solve this number puzzle and find out the possible value for a,b,c and d.

posted Oct 20, 2016 by Nikita Sehgal

+1 vote

The square root of number 121 is "11". What is the square root of the number "12345678987654321." ?

posted Oct 20, 2016 by Pushpak Chauhan

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To produce an annual income of Rs. 2500 in at 2% stock at 90. What is the amount of stock needed?

posted Oct 19, 2016 by Yogeshwar Thakur

+1 vote

The following formula, circumference squared/4 pi, is used to calculate the area of a _________.

posted Oct 17, 2016 by George Davros

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If difference between simple interest and compound interest on a sum for 3 years at 10% is Rs 46.50, then what is sum?

posted Oct 14, 2016 by anonymous

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A man invested 1/3 of his capital at 21%;1/4 at 16% and remainder at 10%. If his income is Rs 2002 then what is capital?

posted Oct 13, 2016 by anonymous

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What are the values of perpendicular and legs in the following triangle?

posted Oct 6, 2016 by anonymous

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Daniel, my son, is exactly one fifth of my age. In 21 years time, I will be exactly twice his age. My wife is...........

posted Oct 6, 2016 by Nikhil Pandey

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Using the numbers 1, 2, 2, 5, 6 & 7 in any order, can you find a mathematical expression with a result equal to 160?

posted Oct 6, 2016 by Pardeep Kohli

+2 votes

Before the start of the car race, Tony Stewart and Jamie Mcmurray have the same amount of fuel in the car. With.........

posted Oct 6, 2016 by Sandeep Bedi

+1 vote

40 men can build a wall 20m high in 15 days. How many men required to build a similar wall 50 m high in 3 days?

posted Oct 6, 2016 by anonymous

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A bicycle is sold at a gain of 27%. If it had been sold for Rs. 45 more, 31% would have been gained. What is...........

posted Oct 5, 2016 by Amarvansh

+1 vote

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder ............

posted Oct 5, 2016 by Madhavi Latha

–1 vote

A bag contains Rs.1800 in form of 1 Rupee, 50 paise & 25 paise coins in ratio 3:4:12. How many 25 Paise coins are there?

posted Sep 30, 2016 by anonymous

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Average weight of 19 students was 50 kg. If add of a new student reduces it to 49.6 kg, what is the weight of new one?

posted Sep 29, 2016 by anonymous

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A sum of Rs.2500 is lent out in two parts one at 12% and another one at 12.5%. If the total annual income is Rs.306...

posted Sep 28, 2016 by anonymous

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Catastrophic events caused by small perturbations in nature.

posted Sep 25, 2016 by George Davros

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Spend & Balance: where did the one rupee gone?

posted Sep 24, 2016 by Varghese Anthony

+2 votes

Physics: Student taking the exam received a zero for this particular question, can you answer the 2 questions?

posted Sep 23, 2016 by George Davros

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A paper is in the form of a square of side 20 m. Semi-circular are drawn inside the square paper on two opposite sides..

posted Sep 22, 2016 by anonymous

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Chances of Mr. Button winning the local lottery in 8%. All participants lined up and Mr. Button is 3rd in the row...

posted Sep 21, 2016 by anonymous

+1 vote

What would be compound interest on Rs.16000 at 20% per annum for 9 months, compounded quarterly?

posted Sep 21, 2016 by anonymous

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You’re on a game show, and you’re given the choice of three doors: Behind one door is a car; behind the others, goats...

posted Sep 19, 2016 by anonymous

+1 vote

Famous female French scientist of the 1700's:

posted Sep 18, 2016 by George Davros

+2 votes

The Golden Ratio: Solve for X in the following quadratic equation - X^2 + X -1 = 0

posted Sep 17, 2016 by George Davros

+2 votes

Space Travel: You've managed to hop a flight on a Space Craft which was able to attain a speed of 86.6% speed of light..

posted Sep 17, 2016 by George Davros

+1 vote

Calling all electrical engineers

posted Sep 16, 2016 by George Davros

+1 vote

You have invested $1,000 in a bank @5% interest compounded continuously. How much money will you have at end of 1 year?

posted Sep 16, 2016 by George Davros

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Raju and Sohan invest in a business in ratio 3:2. If 5% of total profit goes to charity and Raju's share is Rs.1710...

posted Sep 16, 2016 by anonymous

–2 votes

The value of a machine depreciates @ 10% per annum. If present value is Rs.40500, what will be its worth after 2 years?

posted Sep 15, 2016 by anonymous

+1 vote

Area of a circle using the circumference

posted Sep 14, 2016 by George Davros

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A sphere of radius 13cm is cut by a plane whose distance from the center is 5cm. What is the perimeter of the cut?

posted Sep 13, 2016 by anonymous

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If a,b,c are the areas of three adjacent sites of cuboid and N is the volume of it. Then what would be value of N^2 ?

posted Sep 13, 2016 by anonymous

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6 men do a piece of work in 10 days with an effort of 6 hrs/day. How many extra men are required to do the double work..

posted Sep 13, 2016 by anonymous

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If 7+3+6=214275, 2+8+9=161852, 4+6+8=243284, 3+9+5=271573 then 8+2+7=?

posted Sep 12, 2016 by anonymous

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If 10 bags of jelly beans and 6 licorice sticks cost $1, and 10 licorice sticks and 6 jelly bean bags cost 92...........

posted Sep 12, 2016 by Nikhil Pandey

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What is 1/2 of 1/4 of 2/9 of 3/7 of 84?

posted Sep 12, 2016 by Pardeep Kohli