Question

$\text{If a man drinks}\frac{1}{5}\text{L of milk in}\frac{1}{4}\text{min,}$
$\text{how many min will he take to drink 4 L?}$

• A. 4 min
• B. 5 min
• C. 3 min
• D. 6 min

Answer 1

The correct option is B 5 min

$\text{Given, a man drink}\frac{1}{5}\text{L of milk in}\frac{1}{4}\text{min}$

$\therefore \text{Time required to drink 1 L}=\frac{\frac{1}{4}}{\frac{1}{5}}$

$=\frac{1}{4}\times \frac{5}{1}$

$=\frac{5}{4}$

$\text{Time taken to drink 4 L =}4\times \frac{5}{4}$

$=5\text{hours}$