Q. 24 A2
The length breadth and height of a cuboidal hole are 40m, 12m and 16m respectively. The number of planks having the height of 5m and breadth of 4m and thickness of 2m , can be kept in that hole is
Volume of cuboidal hole = Total Volume of planks
⇒ 40 × 12 × 16 = n × 5 × 4 × 2
⇒ 7680 = n × 40
⇒ n = = 192
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Let us write true/false of the following statements:
(i) If the length of each of a cube is twice of that 1st cube then the
volume of this cube is 4 times more than that of the 1st cube.
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[hint: 1 are = 100 sq. m,1 hectre = 100are]West Bengal Board - Mathematics
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