Problems on Numbers - Questions and Answers

6. A number is 25 more than its two-fifth. The number is:

7. If 3 is added to the denominator of a fraction, it becomes The fraction is:

8. A number whose fifth part increased by 5 is equal to its fourth part diminished by 5, is:

9. of a number subtracted from of the number gives 12. The number is:

10. The sum of two numbers is 100 and their difference is 37. The difference of their squares is: