Question

A digital stop-clock measures time in minutes and seconds.

The stop-clock reads 00:50 when it is started (i.e. 00 minutes 50 seconds).

It reads 02:10 when it is stopped.

What is the shortest possible time that has elapsed between starting and stopping the

stop-clock?​

Answer 1

01:20 (1 minute 20 seconds)

Step-by-step explanation:

subtract the starting time from the stopping time to get the time used: 02:10 - 00:50 = 01:20