Problem Solving (PS) | If x is a positive integer divisible by 10, what is the hundreds

­Given - x is a positive integer divisible by 10, means x is multiple of 10. x=10k
Therefore x^x = (10k)^10k.
x can be 10, 20, 30......
Therefore, 10^10 or 20^20 ... will always have hundreds digit 0 (as 10^3 = 1000 therefore any power greater than 2 will always have hundreds digit is 0)
Answer - A­

Statistics : Posted by Purnank • on 26 Jun 2024, 01:30 • Replies 2 • Views 132

---