Problems on Numbers - Questions and Answers

11. Three fourth of one-fifth of a number is 60. The number is:

12. Three numbers are in the ratio 3:4:5. The sum of the largest and the smallest equals the sum of the third and 52. The smallest number is:

13. The sum of two numbers is 15 and sum of their squares is 113. The number are:

14. of a number is 19 less than the original number. The number is:

15. of a certain number is 64. Half of that number is: