In a race, there are 4 members in a team. Each member has to cover 5 km one after another. If the total time taken is 30 minutes, then what would have been the average speed?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 40 km/hr.
⇒ 30 min = 1/2 hour
Average speed = Total distance/total time
= (4 × 5)/(1/2) = 40km/h.