ICSE ICSE Class 8 - CISCE Question Bank Solutions for Mathematics

A man is 42 years old and his son is 12 years old. In how many years will the age of the son be half the age of the man at that time?

A man completed a trip of 136 km in 8 hours. Some part of the trip was covered at 15 km/hr and the remaining at 18 km/hr. Find the part of the trip covered at 18 km/hr.

The difference of two numbers is 3 and the difference of their squares is 69. Find the numbers.

Two consecutive natural numbers are such that one-fourth of the smaller exceeds one-fifth of the greater by 1. Find the numbers.

Three consecutive whole numbers are such that if they be divided by 5, 3 and 4 respectively; the sum of the quotients is 40. Find the numbers.

If the same number be added to the numbers 5, 11, 15 and 31, the resulting numbers are in proportion. Find the number.

The present age of a man is twice that of his son. Eight years hence, their ages will be in the ratio 7 : 4. Find their present ages

Solve: `1/3"x" - 6 = 5/2`

Solve: `(2"x")/3 - (3"x")/8 = 7/12`

Solve:

`1/10 - 7/x = 35`

Solve:

13(x − 4) - 3(x − 9) − 5(x + 4) = 0

Solve: `"x" + 7 - "8x"/3 = "17x"/6 - "5x"/8`

Solve: `(3"x" - 2)/4 - ("2x" + 3)/3 = 2/3 - "x"`

Solve:

`(x + 2)/6 - ((11 - x)/3 - 1/4) = (3x - 4)/12`

Solve: `2/"5x" - 5/"3x" = 1/15`

Solve: `("x" + 2)/3 - ("x" + 1)/5 = ("x" - 3)/4 - 1`

Solve: `(3"x" - 2)/3 + (2"x" + 3)/2 = "x" + 7/6`

Solve: `"x" - ("x" - 1)/2 = 1 - ("x" - 2)/3`

Solve: `("9x" + 7)/2 - ("x" - ("x" - 2)/7) = 36`

Solve: `("6x" + 1)/2 + 1 = ("7x" - 3)/3`