ICSE ICSE Class 8 - CISCE Question Bank Solutions for Mathematics

factorise : (ax + by)² + (bx - ay)²

factorise : ab(x² + y²) - xy (a² + b²) 

Find the cube-root of 2.744

factorise : m - 1 - (m-1)² + am - a 

Find the cube-root of 9.261

Find the cube-root of 0.000027

Find the cube-root of -0.512

Find the cube-root of - 15.625.

Find the cube-root of -125 x 1000

A sum of Rs. 8,000 is invested for 2 years at 10% per annum compound interest. Calculate:
(i) interest for the first year.
(ii) principal for the second year.
(iii) interest for the second year.
(iv) the final amount at the end of the second year
(v) compound interest earned in 2 years.

A man borrowed Rs. 20,000 for 2 years at 8% per year compound interest. Calculate :
(i) the interest of the first year.
(ii) the interest of the second year.
(iii) the final amount at the end of the second year.
(iv) the compound interest of two years.

Calculate the amount and the compound interest on Rs. 12,000 in 2 years and at 10% per year.

Find the cube-root of -216 x 1728

Calculate the amount and the compound interest on Rs. 10,000 in 3 years at 8% per annum.

Find the cube-root of 700 × 2 × 49 × 5.

Find the cube-root of -64 x -125

Find the cube-root of `− 27/343`

Calculate the compound interest on Rs. 5,000 in 2 years; if the rates of interest for successive years be 10% and 12% respectively.

Find the cube-root of `(729)/(-1331)`

Find the cube-root of 250.047