Physics
JAMB 1984
What volume of alcohol with a density of 8.4 x 10
2kgm
-3 will have the same mass as 4.2m
3of petrol whose density is 7.2 x 10
2kgm
-3?
-
A.
14m3
-
B.
3.6m3
-
C.
4.9m3
-
D.
5.0m3
-
E.
5.8m3
Correct Answer: Option B
Explanation
Mass = Density x Volume
4.2 x 7.2 x 102 = v x 8.4 x 102
= 3.6m3
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