Smallest number of `77,20,75`

In each of the following numbers, replace * by the smallest number to make it divisibly by 3: 75 * 5 (ii) 35 * 64 (iii) 18 * 71

Cube root of a number when divided by the smallest prime number gives square of the smallest prime number, find the number.

Find the smallest square number from among the given option which is divisible by each of 8,15 and 20.

Which is the smallest number among the following ?

The mean of the 8 smallest numbers from a group is 17, while the mean of all the numbers of the group taken together is 20. If the mean of the numbers leaving the smallest eight out is 22. how many numbers were present in the group in all?

Find the smallest square number that is divisible by each of the numbers 8,15 and 20.