Question

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

• A. 4 kmph
• B. 5 kmph
• C. 6 kmph
• D. 7 kmph
• E. 8 kmph

Answer 1

The correct option is B

5 kmph

Let Sourav's speed be x kmph

Then, $\frac{30}{x}-\frac{30}{2x}=3$

$\Rightarrow$ 6x = 30

x = 5 kmph