Subject
Quantitative Aptitude
Topic
Clock
A watch which gains uniformly is 2 minutes low at noon on monday and is 4 min.48 sec fast at 2 p.m on the following monday. when was it correct ?
A watch which gains uniformly is 2 minutes low at noon on monday and is 4 min.48 sec fast at 2 p.m on the following monday. when was it correct ?
ক)
2 p.m on Tuesdayখ)
2 p.m on Wednesdayগ)
3 p.m on Thursdayঘ)
1 p.m on FridayExplanation
Time from 12 p.m on monday to 2 p.m on the following monday = 7 days 2 hours = 170 hours Therefore, The watch gains min. or 34/5 min. in 170 hrs. Now, 34/5 min. are gained in 170 hrs. Therefore, 2 min are gained in hrs = 50 hrs Therefore, Watch is correct 2 days 2 hrs. after 12 p.m on monday i.e it will be correct at 2 p.m on wednesday.Related questions
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