ICSE ICSE Class 8 - CISCE Question Bank Solutions for Mathematics

John lent Rs. 2550 to Mohan at 7.5 percent per annum. If Mohan discharges the debt after 8 months by giving an old black and white television and Rs. 1422.50; find the price of the television.

The interest on a certain sum of money is 0.24 times itself in 3 years. Find the rate of interest.

If ₹ 3,750 amount to ₹ 4,620 in 3 years at simple interest. Find:
(i) the rate of interest
(ii) the amount of Rs. 7,500 in `5 1/2` years at the same rate of interest

A sum of money, lent out at simple interest, doubles itself in 8 years. Find :
(i) the rate of interest
(ii) in how many years will the sum become triple (three times) of itself at the same rate percent?

factorise :  6x³ - 8x²

factorise : 35a³b²c + 42ab²c² 

Factorise: 36x²y² - 30x³y³ + 48x³y²

factorise :  8(2a + 3b)³ - 12(2a + 3b)²  

factorise:

9a (x − 2y)⁴ − 12a (x − 2y)³ 

factorise : a² - ab - 3a + 3b 

factorise : x²y - xy² + 5x - 5y 

Find the area of a triangle, whose sides are :

10 cm, 24 cm, and 26 cm

Factorise: 

a² – ab(1 – b) – b³

Find the area of a triangle, whose sides are :

18 mm, 24 mm and 30 mm

At what rate percent of simple interest will the interest on Rs.3750 be one-fifth of itself in 4 years? To what will it amount in 15 years?

Find the area of a triangle, whose sides are :

21 m, 28 m, and 35 m

factorise : xy² + (x - 1) y - 1 

factorise : (ax + by)² + (bx - ay)²

Two sides of a triangle are 6 cm and 8 cm. If the height of the triangle corresponding to 6 cm side is 4 cm; find :

(i) area of the triangle
(ii) height of the triangle corresponding to 8 cm side.

On what date will ₹ 1950 lent on 5th January 2011 amount to ₹ 2125.50 at 5 percent per annum simple interest?