Q24 of 35 Page 74

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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