Question

If in the year 2009, the incomes of both companies A and B were the same, what was the respective ratio of their expenditures in that year?

• A. 7:5
• B. 16:15
• C. 23:21
• D. Cannot be determined
• E. None of these

Answer 1

The correct option is B 16:15

$50=\left(\frac{1-E_1}{E_1}\right)\times 100$
$\Rightarrow 150E_1=100I$
$60=\left(\frac{1-E_2}{E_2}\right)\times 100$
$\Rightarrow 160-E_2=100I$
$\therefore \frac{150E_1}{160E_2}=I$
$\Rightarrow \frac{E_1}{E_2}=\frac{160}{150}=\frac{16}{15}=16:15$