It was 9.35 AM in Garvita's watch, which kept correct time, when Manya informed her that the last bus left the busstop at 9.25 am. Manya's watch is 5 min fast. The frequency of the bus is every 20 min. For how long Garvita mustwait to catch the next bus?
Explanation
It was 9.35 AM in Garvita's watch, which kept correct time.
Manya informed her that the last bus left the bus stop at 9.25 am. Manya's watch is 5 min fast.
So, the actual time when the bus left the bus stop = 9:25 – 0:05 AM
= 9:20 AM
The frequency of the bus is every 20 min.
So, the next bus will arrive at bus stop at 9:40 AM.
As it was 9.35 AM in Garvita's watch, she should wait 5 more minutes to catch the next bus.
Hence, ‘5 min’ is the correct answer.