Question

7.
How many cuboids of dimensions 15cm, 30cm, 15cm will be needed to form a cube?
a) 15
b) 30
c) 4
d) 5

Answer 1

We can make a 30 × 30 × 30 cube by using such 15 × 30 × 15 cuboids. Then the no. of cuboids needed to make that cube is,

$\dfrac {30\times 30\times 30}{15\times 30\times15}=\bf{4}$

Hence (c) is the answer.

Answer 2

Answer:

(c) is the answer.

Step-by-step explanation:

We can make a 30 × 30 × 30 cube by using such 15 × 30 × 15 cuboids. Then the no. of cuboids needed to make that cube is,