Management Aptitude Test 2018 Paper

(a) Let Y kg of rice is sold at 8% profit and (50 - x) kg of rice is sold at 18% profit.
According to the question,
$\frac{108}{100}\mathit{x}$ + (50 - x) × $\frac{118}{100}=\frac{114}{100}$ x 50
⇒ $\frac{108\mathit{x}+5900-118\mathit{x}}{100}$ = $\frac{5700}{100}$
⇒ 10x = 200
⇒ x = 20 kg
Rice sold at 18%profit = (50 - 20 ) kg = 30 kg