WAEC Mathematics 2019 Objective — Question 47

Question 47 of 145 from the West African Examinations Council (WAEC) Mathematics 2019 Objective paper, with the correct answer and a full explanation.

47. The pie chart represents fruits on display in a grocery shop. If there are 60 oranges on display, how many apples are there?

A. 90Correct
B. 80
C. 70
D. 40

Explanation

The sectorial angle for oranges = 360−(60+100+120)=80° (banana=60°, pawpaw=100°, apple=120°, orange=80°, taking apple's sector as 120°). For 60 oranges: 80°/360°×N=60 ⇒ N=270 total fruit. For apples: 120°/360°×270 = 90.

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