a) 248 m3
b) 219 m3
c) 240 m3
d) 200 m3
Answer: c
Explanation: Cross sectional area = \(\frac{1}{2}\)*W*h = \(\frac{1}{2}\)*20*20 = 200 cm3 = 0.02 m3
Distance covered in 5 h = 2.4 * 5 = 12 km = 12000 m
Therefore, volume of soil cut in 5 h = 12000 * 0.02 = 240 m3
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