What angle represents grown up girls Correct to... - WAEC Mathematics 1989 Question
What angle represents grown up girls ? Correct to one decimal place
A
37.5o
B
26.7o
C
25.7o
D
20o
correct option: b
Total population = 1400 + 550 + 200 + 150 + 400 = 2700
grown up girls = 200
= \(\frac {200}{2700}\) x \(\frac {360}{1}\)
=80/3 = 26.7°
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