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 Plast...

Assessment: WAEC SSCE - General Mathematics - 1992 (Objective) Subject: General Mathematics

Question 1 Report

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 one of the workers is absent on a certain day,
what is the probability that he is a bricklayer?
Answer Details
The total number of workers in the company is 24+27+12+15+9+3+18 = 108. The probability of an absent worker being a bricklayer is the ratio of the number of bricklayers to the total number of workers, which is 18/108 = 1/6. Therefore, the probability that the absent worker is a bricklayer is 1/6. Answer: 1/6.

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