In a class the ratio of female students to male students is 16:9. What percentage of the class is female?

A60%

B55%

C36%

D64% ✓ Correct

Correct answer: (D) 64%

Explanation

64% of the class is female.

The ratio female:male = 16:9, so total parts = 16 + 9 = 25.

The female fraction = 16/25.

16/25 = 0.64.

So females form 64% of the class.

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