Discussion Forum



1)

An aeroplane covers a certain distance at a speed of 240 kmph in 5 hours. To cover the same distance in $1\frac{2}{3}$ hours, it must travel at a speed of :


A) 725 km/hr

B) 720 km/hr

C) 726 km/hr

D) 727 km/hr

E) 728 km/hr

Answer:

Option B

Explanation:

Distance $=(240\times 5)$ km = 1200 km.

Reauired Speed $=\left(1200\times\frac{3}{5}\right)$ km/hr = 720 km/hr.