alleryA class of 12 pupils has three quarters present. How many are present?
A3
B16
C9
D4
Answer & Solution
Correct answer: C. 9
1. Write 12 as 12/1 and multiply by 3/4.
2. (3 x 12)/(4 x 1) = 36/4 = 9.
3. 3 and 4 are mistaken parts, and 16 is 12 divided by 3/4, not multiplied.
_Source: Wikipedia, Fraction, section Multiplying a fraction by a whole number_
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