A 400-kg concrete block is 1 m long, 0.6 m wide, and 0.3 m high. Its density is
A) 72 kg/m.
B) 222 kg/m.
C) 667 kg/m.
D) 2222 kg/m.

Name: A 400-kg concrete block is 1 m long, 0.6 m wide, and 0.3 m high. Its density is A) 72 kg/m. B) 222 kg/m. C) 667 kg/m. D) 2222 kg/m.
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Question

Quizplus · Accepted Answer

Density = Mass/Volume
The volume of the block is: 1 x 0.6 x 0.3 = 0.18 m^3
So, Density = 400/0.18 ≈ 2222 kg/m^3
Therefore, the best choice is C, which is the closest to the calculated value.

A 400-Kg Concrete Block Is 1 M Long, 0