If `n=1!+4!+7!+......+400!` then ten's digit of 'n' is

If n=1!+4!+7!+......+400! then ten's digit of ln' is

If S=1!+4!+7!+10!+ . . .+400!, then Q. The ten's digit in the number S is divisible by

If S=1!+4!+7!+10!+ . . .+400!, then Q. The last two digits in (1!+4!+7!)! is

If S=1!+4!+7!+10!+ . . .+400!, then Q. The last two digits in the number S is divisible by

The ten's digit of 1!+2!+3!+ . . .+97! is

The last digit of 3^(3^(4n))+1 , is

The unit digit of (316^3)^(4n) + 1 is

A number lies between 300 and 400. If the number is added to the number formed by reversing the digits,the sum is 888 and if then unit's digit and the ten's digit change places, the new number exceeds the original number by 9. Find the number.

If the division of a natural number n by 5 leaves a remainder of 3, what might be the ones digit of n? 1, what might be the ones digit of n? 4, what might be the ones digit of n?