Tag: math & puzzles

A 20 foot pole casts a 5 foot shadow. If, at the same time of day, a building casts a shadow 20 feet, how high is the building?

Suppose we have three traffic light changing after 36,42 and 72 sec respectively. If the light had been switched on at 9:00 A.M sharp, at what time will they change simultaneously.

what is the sum of even divisor of 96 and odd Factors of 3600

find the number of zeroes in 127!

in the no. 34x5y find the value of x and y if the no. is divisible by 36.

what is the maximum value of n such that 77! is perfectly divisible by 720^n(720 reaise to power n)?

what is the maximum value of n such that 77! is perfectly divisible by 720^n(720 reaise to power n)?

Next number in the series 7,5,9,3,11,1,---

What will be the next number 4 ,-3 ,24 ,3 ,124 ,-9 ,624 ,15 ,3124 ,---;