The data below shows the number of worker emplo... - WAEC Mathematics 1992 Question
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
correct option: d
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