Discussion Forum



1)

In covering a distance of 30 km, Abhay takes 2 hours more than Sameer. If Abhay doubles his speed, then he would take 1 hour less than Sameer. Abhay's speed is :


A) 5 km/hr

B) 7 km/hr

C) 8 km/hr

D) 4 km/hr

E) 6 km/hr

Answer:

Option A

Explanation:

Let Abhay's speed be $x$ km/hr.

Then, $\frac{30}{x}-\frac{30}{2x}=3$ $\Leftrightarrow 6x=30$ $\Leftrightarrow x=5$ km/hr