What is the approximate percentage increase in the production of Company $A$ (in tonnes) from the year 2009 to the production of Company $A$ (in tonnes) in the year 2010 ?
(a)18 \%
(b)38 \%
(c)23 \%
(d)27 \%
(e)32 \%
Answer
Answer (as printed): D
Explanation
Production of $A$ in 2009 = 550 tonnes. Production of $A$ in $2010=700$ tonnes. Increase $\%=\left(\frac{150}{550} \times 100\right) \%=\frac{300}{11} \%=27.2 \% \simeq 27 \%$.
Explanation as extracted from the printed page; notation may be imperfect.