Four gardeners with four grass mowers mow 400 square metres of ground in four hours How long would i...........

Quantitative Aptitiude (CLAT) Number System

Four gardeners with four grass mowers mow 400 square metres of ground in four hours. How long would it take for eight gardeners with eight grass mowers to mow 800 square metres of ground?

8 hours

6 hours

12 hours

4 hours

Explanation:

If 4 gardeners, 4 grass mowers and 400 sq meter ground
can be mowed in 4 hours that means 1 gardener, 1 grass
mower can mow 100 sq meter in 4 Hr. Hence, 8
gardeners, 8 grass mower can mow 800 sq meter also in
4 hours.