A watch which gains uniformly is 2 minutes low at noon on Tuesday and is 4 min 48 sec fast at 2 p.m. on the following Tuesday. When was it correct ?
A) 12 p.m. on Wednesday
B) 2 p.m. on Thursday
C) 3 p.m. on Thursday
D) 2 p.m. on Wednesday
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A watch which gains uniformly is 2 minutes low at noon on Tuesday and is 4 min 48 sec fast at 2 p.m. on the following Tuesday. When was it correct ?
A) 12 p.m. on Wednesday
B) 2 p.m. on Thursday
C) 3 p.m. on Thursday
D) 2 p.m. on Wednesday✔️✔️✔️✔️
A) 12 p.m. on Wednesday
B) 2 p.m. on Thursday
C) 3 p.m. on Thursday
D) 2 p.m. on Wednesday✔️✔️✔️✔️
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Q:
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) 2 p.m. on Tuesday
B) 2 p.m. on Wednesday
C) 3 p.m. on Thursday
D) 1 p.m. on Friday
Answer: B) 2 p.m. on Wednesday
Read Description:
Time from 12 p.m. on Monday to 2 p.m. on the following Monday = 7 days 2 hours = 170 hours.
The Watch gains [2+ 4 4/5(mixed fraction)] min. or 34/5 min. in 170 hrs.
Now, 34/5min.are gained in 170 hrs.
2 min.are gained in (170*5/34*2) hrs=50 hrs
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
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) 2 p.m. on Tuesday
B) 2 p.m. on Wednesday
C) 3 p.m. on Thursday
D) 1 p.m. on Friday
Answer: B) 2 p.m. on Wednesday
Read Description:
Time from 12 p.m. on Monday to 2 p.m. on the following Monday = 7 days 2 hours = 170 hours.
The Watch gains [2+ 4 4/5(mixed fraction)] min. or 34/5 min. in 170 hrs.
Now, 34/5min.are gained in 170 hrs.
2 min.are gained in (170*5/34*2) hrs=50 hrs
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
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