watch gains time uniformly. it was observed that it was 6 minutes slow at 12 o'clock in the night on Monday. On Friday at 12 o'clock in the night, it was 6 minutes 48 second fast. When was it correct?
Answers
Answered by
0
Step-by-step explanation:
Correct option is
A
20 min past 7 p.m. on Wednesday
Time from 8 a.m on Sunday to 8 p.m on following Sunday = 7 days 12 hours = 180 hours
∴ The watch gains (5+554) min or 554
min in 180 hrsNow 554 min are gained in 180 hrs
∴ 5 min. are gained in (180× 545×5) hrs.83hrs 20 min. = 3 days 11 hrs 20 min.
∴ Watch is correct 3 days 11 hrs 20 min. after 8 a.m. of Sunday
∴ It will be correct at 20 min past 7 p.m. on Wednesday
Similar questions