Question

Milk is sold at Rs $37\frac{3}{4}$ per litre. Find the cost of $6\frac{2}{5}$ litres milk.

Answer 1

Cost of 1 L of milk = Rs $37\frac{3}{4}$ = Rs $\frac{151}{4}$
Cost of $6\frac{2}{5}$ L of milk = Rs $\left(\frac{151}{4}\times 6\frac{2}{5}\right)$
= Rs $\left(\frac{151}{4}\times \frac{32}{5}\right)$
= Rs $\left(\frac{151\times 8}{1\times 5}\right)$ = Rs $\frac{1208}{5}$ = Rs $241\frac{3}{5}$
Hence, the cost of $6\frac{2}{5}$ L of milk is Rs $241\frac{3}{5}$.