How many planks of dimensions `(5m xx 25 cm xx 10 cm)` can be stored in a pit which is 20m long, 6m wide and 80 cm deep ?

Answer

768

Explanation

Volume of pit `= (20 xx 6 xx (80)/(100)) m^(3) = 96 m^(3)`
Volume of one plank `= (5 xx (25)/(100) xx (10)/(100)) m^(3) = (1)/(8) m^(3)`
Number of planks `= ("volume of pit")/("volume of 1 plank")`