A lawn 40 m long and 35 m wide is surrounded by a path 2 m wide How many cubic metres of gravel are ...........

Quantitative Aptitude ( CCS) Mensuration 3D

A lawn, 40 m long and 35 m wide, is surrounded by a path 2 m wide. How many cubic metres of gravel are required to cover the path to a depth of 10 cm?

11.8 cu m

31.6 cu m

62 cu m

13.6 cu m

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Explanation:

The path is formed by two rectangles, which have dimensions as 40 × 35 and 44 × 39.
The required quantity of gravel= area of the path x depth of gravel
= [(44 x 39) – (40 x 35)] x 0.10
= 31.6 cu. m