What is the ratio of the number of boys in School $C$ in the year 2009 to the number of girls in School $A$ in the year 2009 ?
(a)29 : 41
(b)36 : 11
(c)29 : 43
(d)36 : 13
(e)None of these
Answer
Answer (as printed): C
Explanation
(Number of boys in $C$ in 2009) : (Number of girls in $A$ in 2009) $$\begin{aligned} & =(8.7 \times 100):(12.9 \times 100) \\ & =\frac{870}{1290}=\frac{29}{43}=29: 43 . \end{aligned}$$
Explanation as extracted from the printed page; notation may be imperfect.