Question 84

If a boat goes a certain distance at 30 km/hr and comes back the same distance at 60 km/hr. What is the average speed (in km/hr) for the total journey?

Solution

average speed = $$\frac{2ab}{a+b}=\frac{2(30)(60)}{30+60}=40$$

So the answer is option C.

Share on Whatsapp Share on Whatsapp

Create a FREE account and get:

Free SSC Study Material - 18000 Questions
230+ SSC previous papers with solutions PDF
100+ SSC Online Tests for Free

Follow us on

Boost your Prep!

Download App