Telangana SCERT Solution Class VIII (8) Math Chapter 6 Square Roots and Cube Roots Exercise 6.4
Contents
(1) Find the cube of the following numbers
(i) 8
(ii) 16
(iii) 21
(iv) 30
(2) Test whether the given numbers are perfect cubes or not.
(i) 243
(ii) 516
(iii) 729
(iv) 8000
(v) 2700
(3) Find the smallest number by which 8788 must be multiplied to obtain a perfect cube?
(4) What smallest number should 7803 be multiplied with so that the product becomes a perfect cube?
(5) Find the smallest number by which 8640 must be divided so that the quotient is a perfect cube?
(6) Ravi made a cuboid of plasticine of dimensions 12 cm, 8 cm and 3 cm. How many minimum number of such cuboids will be needed to form a cube?
(7) Find the smallest prime number dividing the sum 311 + 513.
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