Question

$2$ cars travel from the same point along parallel lanes of a highway for a distance of $10$ miles. When car $M$, travelling at $60$ miles an hour reaches the end of the distance, how much further will car $N$ have to travel, if it is travelling at $48$ miles an hour?

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

The correct option is B 2

For car $M$ speed $=60$ miles\hr

Distance $=10$ miles

$\therefore$ Time $=\frac{distance}{speed}=\frac{10}{60}$

In the same time car $N$ travelling at speed $40$ miles\hr will cover distance $=$ $48\times \frac{10}{60}=8$ miles.

$\therefore$ car $N$ further have to travel $2$ miles .