## ML Aggarwal Class 8 Solutions for ICSE Maths Model Question Paper 1

**Choose the correct answer from the given four options (1-2):**

Question 1.

Sum of rational number \(\frac { 5 }{ 7 }\) and its additiveinverse is

(a) 1

(b) 0

(c) -1

(d) none of these

Solution:

Question 2.

Product of two rational numbers is 1. If one of them is \(\frac { 4 }{ 5 }\), then other is

Solution:

Question 3.

Find the value of x for which \(\left(\frac{4}{9}\right)^{x} \times\left(\frac{3}{2}\right)^{-1}\) = \(\frac{8}{27}\).

Solution:

Question 4.

Express the following numbers in standard form:

(i) 0.0000000000578

(ii) 345700000000000

Solution:

Question 5.

Insert ten rational numbers between \(\frac{-4}{5}\) and \(\frac{2}{3}\).

Solution:

Question 6.

Find the cube root of 50653.

Solution:

Question 7.

Find the smallest number by which 3645 should be divided so that quotient is a perfect cube.

Solution:

Question 8.

If p = \(\frac{-3}{5}\), q = \(\frac{1}{2}\), r= \(\frac{-7}{9}\),then verify p × (q + r) = p × q + p × r.

Solution:

Question 9.

Find the square root of 7056 by prime factorisation method.

Solution:

Question 10.

Find the least number which must be added to 59000 to make it a perfect square.

Solution: