Pat's watch gains an extra 10 seconds every 2 hours. Kim's watch loses 5 seconds every 3 hours. If both watches are set

This topic has expert replies
Moderator
Posts: 1991
Joined: 15 Oct 2017
Followed by:6 members

Timer

00:00

Your Answer

A

B

C

D

E

Global Stats

Source: GMAT Prep

Pat's watch gains an extra 10 seconds every 2 hours. Kim's watch loses 5 seconds every 3 hours. If both watches are set to correct time at 8 o'clock in the morning and run without interruption, after 72 hours, what will be the difference in time between Pat's watch and Kim's watch?

A. 4 min
B. 6 min
C. 6 min 40 sec
D. 7 min 30 sec
E. 8 min

The OA is E