NCERT Solution: Surface Areas and Volumes

NCERT Exercise Exercise 13.5

A godown measures 40m x 25m x 15m. Find the maximum number of wooden crates each measuring 1.5m x 1.25m x 0.5m that can be stored in the godown.

Dimension of godown = 40 m x 25 m x 15 m
Volume of the godown = (40 x 25 x 15) m3 = 10000 m3
Dimension of crates = 1.5m x 1.25m x 0.5m 
Volume of 1 crates = (1.5 x 1.25 x 0.5) m3 = 0.9375 m3
Number of crates that can be stored =Volume of the godown/Volume of 1 crate
= 10000/0.9375 = 10666.66 = 10666

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