The number of girls in School $B$ in the year 2009 is approximately what per cent of the total number of students in School $E$ in the year 2006 ?
(a)46\%
(b)52\%
(c)70\%
(d)58\%
(e)65\%
Answer
Answer (as printed): E
Explanation
Number of girls in School $B$ in 2009 $$=(5.9 \times 100)=590 .$$ Total number of students in School $E$ in 2006 $$=(5.5+3.6) \times 100=(9.1 \times 100)=910 .$$ Required $$\begin{aligned} \%= & \left(\frac{590}{910} \times 100\right) \%=\frac{5900}{91} \% \\ & =64.8 \%=65 \% \text { (nearly) } \end{aligned}$$
Explanation as extracted from the printed page; notation may be imperfect.