waecmaths question:
There are 250 boys and 150 girls in a school. If 60% of the boys and 40% of the girls play football, what percentage of the school plays football?
Option A:
40%
Option B:
42.2%
Option C:
50.0%
Option D:
52.5%
waecmaths solution:
Total number of students in the school = 250 +150 = 400 which constituent 100%
No. of boys that play football = $\frac{60}{100}\times 250=150boys$
No of girls that play football =$\frac{40}{100}\times 150=60girls$
Total no. of those who play football = 210 boys
The percentage of those that play football = $\frac{210}{400}\times 100=52.5%$
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