Question

The volume of water measured on a rectangular field 400m 200m is 8000 . Find the depth (amount) of rain that has fallen.

A 15 cm Correct Answer Incorrect Answer
B 18 cm Correct Answer Incorrect Answer
C 10 cm Correct Answer Incorrect Answer
D 20 cm Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

Volume of water = Volume of the field with rainwater as height  ⟹ 8000 = 400 × 200 × h ∴ h = 8000/(400 × 200) = 1/10  m = 10 cm

×
×