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

A. 190

B. 192

C. 184

D. 180

Answer :

Volume of cuboidal hole = Total Volume of planks

⇒ 40 × 12 × 16 = n × 5 × 4 × 2

⇒ 7680 = n × 40

⇒ n = = 192

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