14-11-2021 Answers

 1. A four-digit number formed by repeating a two digit number is always-> 101

2. In how many ways 6400 can be written as a product of two distinct-> 13

3. What is the highest power of 8 in 80! ?-> 26

4. The unit digit in 122^173 is-> 2

5. A printer number the pages of a book from 1 and uses 3181 digits in all-> 1072

6. What will be the number of zeroes at the end of 100!-> 24

7. What is the remainder when 9^36^77-> 1

8. Find the last digit of (2953^130)-> 2

9. What is the remainder 9^1+9^2+9^3+9^4+9^5+9^6+9^7+9^8+9^9-> 3

10. If the sums of the digits of an even number is divisible by 9-> 18