The data below shows the number of worker? employed in the various sections of a...

Mathematics

WAEC 1992

The data below shows the number of worker?
employed in the various sections of a construction
company in Lagos.

Carpenters 24 Labourers 27
Plumbers 12 Plasterers 15
Painters 9 Messengers 3
Bricklayers 18

If a worker is retrenched, what is the probability that he is a plumber or plasterer.

A. 1/27
B. 1/9
C. 5/36
D. 1/4
E. 3/4

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Correct Answer: Option D

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