#281 - Find the angle of a triangle
In the image below, can you find the the value of an angle(y)
60
#282 - Maths Number Riddle
Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number.
125874 shuffled to 251748
#283 - Maths Logic Riddle
It can be easily calculated that the digits 0 to 9 can be arranged into 3628800 distinct ten-digit numbers.
But I also know how many of these numbers are prime.
Do you?
Zero
The sum of numbers from zero to nine is 45 and can be divisible by 3 and 9.
#284 - Short Maths Riddle
If 5 Rats eat 5 cheese in 5 seconds.
How many seconds would it take 4 Rats to eat 4 cheese ?
5 seconds
#285 - Short Math Riddle
Can you convert number zero(0) into a positive number using just one mathematical operator ?
0!
#286 - Simple Maths Picture Problem
Replace the question mark with the number of this simple math problem?
18
#287 - Logical Number Problem
According to number theory of mathematics , a perfect number is a positive integer that is equal to the sum of its positive divisors excluding the number itself.
For example :
6 => 1+2+3
28 =>1+2+4+7+14
I know one more number that is a perfect number and contains not more than 2 digits (i.e 496 won't be consider as it contains 3 digits).
Find the number ?
12=> 1+2+3+6
cannot be 1 (as number cannot be included)
#288 - kpit cummins Aptitude Interview Logic Qu
Product of three consecutive numbers are 7980.
Then the sum of these consecutive numbers would be ?
60(19+20+21)
#289 - Replace The Question Mark In The Picture
Replace The Question Mark in the picture with the correct number.
7
#290 - Sachin Red Ferrari Number Riddle
Sachin Tendulkar bough a red ferrari with a strange 5 digit numbered plate.The water image of the number is 78633 more than my car number.All the digits of sachin's car number are distinct.
What is the original number on sachin's number plate?
10968
Water image is 89601