Find the number of digits `5^(25)`

Find the number of digits (2.5)^(200)

Find the number of 5 digit numbers with different digits having middle term greatest and with non-zero digits?

Find the number of 4 digit numbers that can be formed using the digits 1,2,3,4,5 if no digit is repeated.How many of these will be even?

Find the numbers of 4 -digit numbers that can be formed using the digits,1,2,3,4,5 if no digit is repeated ? How many of these will be even?

Find the number of 4- digit numbers that can be formed using the digits 1,2,3,4,5 if no digit is repeated.How many of these will be even?

Find the number of 3 -digit numbers which are the sums of the cubes of their digits.

Find the greatest number of 5 digits which is a perfect square.

Find the number of 3-digit numbers, formed with the digit (2,5,4,6) when repetition of the digits is allowed.

Find the number of 6-digit numbers that can be found using the digits 1, 2, 3, 4, 5, 6 once such that the 6-digit number is divisible by its unit digit. (The unit digit is not 1).