Problems on Numbers - Questions and Answers

1. If one-fourth of one-third of one-half of a number is 15, the number is:

2. The sum of two numbers is twice their difference. If one of the numbers is 10, the other number is:

3. A positive number when decreased by 4, is equal to 21 times the reciprocal of the number. The number is:

4. If 1 is added to the denominator of a fraction, the fraction becomes If 1 is added to the numerator, the fraction becomes 1. The fraction is:

5. The difference between the squares of two consecutive number is 35. The numbers are: