# 1992 - WAEC Mathematics Past Questions and Answers - page 5

41

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

**correct option:**d

42

A fair die is rolled once. What is the probability of

obtaining 4 or 6?

obtaining 4 or 6?

A

1/12

B

1/6

C

1/3

D

1/2

**correct option:**c

43

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

**correct option:**c

Total number of balls = 18

P(1R, 1W, 1B) =

Users' Answers & CommentsP(1R, 1W, 1B) =

^{5}/_{18}x^{9}/_{18}x^{4}/_{18}=^{5}/_{162}44

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

**correct option:**d

45

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