Mensuration Practice Test 1

Question : 3 of 40

Marks: +1, -0

A log of wood whose length and width is 4 m × 3 m is floating on a surface of still water. The log sinks by 0.1 cm when a monkey gets on its. Then the weight of the monkey is:

11 kg
5.7 kg
12 kg
9.2 kg

Validate

Solution:

Volume of water displaced by the log when the monkey stepped on it
=

4×3×{0.1}/{100} m^3

0.012 m^3

Weight of the monkey = 0.012 × 1,000 kg = 12 kg.

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