Mathematics Past Questions and Answers

What is the probability of throwing a number greater than 2 with a single fair die

A 1/6
B 1/3
C 1/2
D 2/3
E 5/6

Question 2617:

A fair die is rolled once. What is the probability of
obtaining 4 or 6?

A 1/12
B 1/6
C 1/3
D 1/2
E 2/3

Question 2618:

Three balls are drawn one after the other with replacement, from a bag containing 5 red, 9white and 4 blue identical balls, What is the probability that they are one red, one white and one blue?

A 5/102
B 5/136
C 5/162
D 5/204
E 5/243

Question 2619:

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?

A 1/12
B 1/9
C 2/9
D 1/6
E 1/4

Question 2620:

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