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Recent puzzles under tag mathematical

+1 vote
Solve the below equation by replacing each letter by different digit.
posted Jan 11, 2018 by Harshita Dhaliwal
  • logic
  • number puzzle
  • mathematical
+1 vote
What is the sum of all the 3 digit number formed by using digits 2, 5, 7 & 9 (repetition being not allowed)?
posted Jan 10, 2018 by anonymous
  • permutation
  • mathematical
  • logic
0 votes
How much does a soap weigh?
posted Jan 9, 2018 by Pardeep Kohli
  • mathematical
  • logic
+2 votes
Can you solve this tricky maths equation problem by replacing ? mark with correct number?
posted Jan 9, 2018 by Ujjwal Mehra
  • mathematical
  • number puzzle
  • logic
0 votes
Find the value of x in the given triangle?
posted Jan 9, 2018 by anonymous
  • geometry
  • mathematical
+1 vote
True or False: 1/0! + 1/1! + 1/2! + 1/3!.... = 0/0! + 1/1! + 2/2! + 3/3!....
posted Jan 9, 2018 by anonymous
  • mathematical
  • algebra
0 votes
Water flowing at 50 km/hr in a rectangular tank 44m long and 28m wide. In how much time level of tank rises by 1/2m?
posted Jan 5, 2018 by anonymous
  • mathematical
0 votes
A number can be multiplied by multiple of nine i.e 9 18 27 36 45 ....and the resulting number consist of only one digit.
posted Jan 5, 2018 by Tapesh Kulkarni
  • logic
  • mathematical
  • number puzzle
0 votes
What is the HCF of 135 and 225?
posted Jan 5, 2018 by Uttam Barman
  • mathematical
0 votes
3 identical 30°, 60°, 90° right triangles are arranged as shown in figure. What is the ratio between greed and red line?
posted Jan 3, 2018 by anonymous
  • geometry
  • mathematical
+1 vote
Mark is throwing his son Stewart a surprise birthday party but he.........is out of money, how much did Mark start with?
posted Jan 3, 2018 by Simranjeet Singh
  • logic
  • mathematical
+1 vote
What is the probability of getting a product of 6 from three throws of a dice?
posted Jan 3, 2018 by anonymous
  • probability
  • mathematical
0 votes
If, 5 + 3 – 2 = 48; 4 – 3 + 3 = 28. Then, 5 + 2 + 3 – 4 + 4 – 3 = ?
posted Jan 3, 2018 by Nikita Sehgal
  • logic
  • number puzzle
  • mathematical
+1 vote
How long Michael Phelps can cover distance of one side at a still lake (no current).
posted Jan 2, 2018 by Yogeshwar Thakur
  • logic
  • mathematical
  • time distance
0 votes
If a^2−b^2=2640 and a^2+b^2=6338 then what is the value of 23ab?
posted Jan 2, 2018 by anonymous
  • mathematical
0 votes
If 198 cubic centimeters of silver is drawn into a wire 1 mm in diameter then what is the length of the wire?
posted Dec 28, 2017 by anonymous
  • mathematical
0 votes
Three numbers add up to 14. Multiplied together they come to 84. Find the numbers?
posted Dec 28, 2017 by anonymous
  • number puzzle
  • mathematical
+1 vote
What is the probability of getting a product of 72 from three throws of a dice? [MCQ]
posted Dec 21, 2017 by anonymous
  • probability
  • mathematical
+1 vote
How many unique ways are there to arrange the letters in the word Chimpanzee?
posted Dec 18, 2017 by anonymous
  • permutation
  • mathematical
0 votes
What percentage of the square's area is colored blue? [MCQ]
posted Dec 15, 2017 by anonymous
  • geometry
  • mathematical
0 votes
No matter where and how many + signs added between digits of number 123456789, resulting number is still divisible by 3? [MCQ]
posted Dec 15, 2017 by anonymous
  • mathematical
  • number puzzle
0 votes
How many people were there in the group?
posted Dec 14, 2017 by Nikhil Pandey
  • logic
  • mathematical
+2 votes
What was their average speed over the entire journey?
posted Dec 12, 2017 by Chahat Sharma
  • time distance
  • logic
  • average
  • mathematical
0 votes
Can you tell the house number of each of Rohan's friends ?
posted Dec 12, 2017 by Saif Khanam
  • logic
  • mathematical
+1 vote
When 31513 and 34369 are each divided by a certain three-digit number, the remainders are equal. Find this remainder?
posted Dec 11, 2017 by anonymous
  • number puzzle
  • mathematical
+1 vote
Sides of a triangle are in the ratio 3:4:5. If R denotes circumradius and r denotes inradius then find R/r?
posted Dec 11, 2017 by anonymous
  • geometry
  • mathematical
0 votes
What is the relation between cuboid with dimension a x b x c and 3 cubes with side lengths a, b and c respectively?
posted Dec 11, 2017 by anonymous
  • geometry
  • mathematical
+1 vote
What 4-digit number abcd satisfies this equation? 4 x abcd = dcba
posted Dec 11, 2017 by Samardeep Acharya
  • mathematical
  • logic
+2 votes
Trigonometry: tanA+secA=x than prove that sinA=x²-1/x²+1
posted Dec 10, 2017 by Rohit Kumar
  • trigonometry
  • mathematical
0 votes
How many times in 2015 did they exercise in the gym together?
posted Dec 8, 2017 by Simranjeet Singh
  • logic
  • mathematical
0 votes
If a/b = 39/7, b/c = 4/11, c/d = 7/26, e/f = 49/77 and d/e = 44/56 then what is the value of 13*abc/def ?
posted Dec 8, 2017 by anonymous
  • logic
  • mathematical
  • number puzzle
+1 vote
In the regular decagon (10-sided polygon) below, find the percentage of the shaded area.
posted Dec 7, 2017 by anonymous
  • geometry
  • mathematical
+1 vote
If largest circle has radius 225 and medium circle has radius 100 in the image, what is the radius of smallest circle?
posted Dec 7, 2017 by anonymous
  • geometry
  • mathematical
0 votes
Find the last two non zero digits in 2017!
posted Dec 7, 2017 by anonymous
  • mathematical
  • number puzzle
0 votes
Find the result for the given equation.
posted Dec 7, 2017 by Maninder Bath
  • mathematical
+1 vote
How many coins do Aanya, Laila and Jignesh have altoghther?
posted Dec 6, 2017 by Swati Arora
  • mathematical
+1 vote
How many fence posts are required to surround a field that is 12 metres square, if a post must be provided every metre?
posted Dec 6, 2017 by Dilbagh
  • mathematical
0 votes
What value should question mark be?
posted Dec 5, 2017 by Nimish
  • logic
  • mathematical
  • number puzzle
+1 vote
Can you find out the "friendship like" relation between the two even numbers 284 and 220?
posted Dec 4, 2017 by Vilas Joshi
  • mathematical
  • number puzzle
0 votes
Amogh buys three items at the store for exactly Rs 100. The second item costs half...........How much did each one cost?
posted Dec 4, 2017 by Deepak Chitragar
  • logic
  • mathematical
0 votes
Find the missing number in the table.
posted Nov 30, 2017 by Varun Kumar
  • logic
  • number puzzle
  • mathematical
  • series
0 votes
How long will it take to fill the bucket?
posted Nov 27, 2017 by Madhavi Latha
  • logic
  • mathematical
+1 vote
What is the measurement of the orange angle in degrees in the following right angle triangle? [MCQ]
posted Nov 26, 2017 by anonymous
  • geometry
  • mathematical
0 votes
x, y, z are integer. How many solution for (x, y, z) we get from this equation: x.y.z=2017 [MCQ]
posted Nov 26, 2017 by anonymous
  • mathematical
  • algebra
0 votes
If you knew that the radius of the big circle and the big arcs is 5 cm, what is the area of the yellow region?
posted Nov 26, 2017 by anonymous
  • geometry
  • mathematical
0 votes
Difference between simple interest and compound interest for 3 years at 7% per annum is $ 192.55. What is the sum? [MCQ]
posted Nov 26, 2017 by anonymous
  • interest
  • mathematical
0 votes
It is a 2-digit positive integer, sum of its digits is 10, subtracting 72 from it swaps its two digits. What is number?
posted Nov 24, 2017 by anonymous
  • mathematical
  • number puzzle
0 votes
Solve for x and fill in the missing number in the sequence:
posted Nov 18, 2017 by George Davros
  • series
  • logic
  • number puzzle
  • mathematical
  • riddle
0 votes
Solve the following equation from the given hints?
posted Nov 16, 2017 by anonymous
  • number puzzle
  • mathematical
0 votes
Find the logic behind the numbers and then find the value of the missing number.
posted Nov 16, 2017 by Deepak Chitragar
  • logic
  • number puzzle
  • mathematical
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