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A watch is 1 minute slow at 1 pm on Tuesday and 2 minutes fast at 1 pm on Thursday. When did it show the correct time = ?
- a)1 : 00 am on Wednesday
- b)5 : 00 am on Wednesday
- c)1 : 00 pm on Wednesday
- d)5 : 00 pm on Wednesday
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
A watch is 1 minute slow at 1 pm on Tuesday and 2 minutes fast at 1 pm...
Time from 1 pm on Wednesday to 1 pm on Thursday = 48 hours
So, the watch gains (1 + 2) minute or 3 minutes in 48 hours.
Now, 3 minutes are gained in 48 hours
So, 1 minute is gained in (48/3) = 16 hours.
Thus, the watch showed the correct time 16 hours after 1 pm on Tuesday, i.e., 5 am on Wednesday.
So, the watch gains (1 + 2) minute or 3 minutes in 48 hours.
Now, 3 minutes are gained in 48 hours
So, 1 minute is gained in (48/3) = 16 hours.
Thus, the watch showed the correct time 16 hours after 1 pm on Tuesday, i.e., 5 am on Wednesday.
Community Answer
A watch is 1 minute slow at 1 pm on Tuesday and 2 minutes fast at 1 pm...
To determine when the watch showed the correct time, let's consider the information given:
1. The watch is 1 minute slow at 1 pm on Tuesday.
2. The watch is 2 minutes fast at 1 pm on Thursday.
Let's break down the problem step by step:
Step 1: Analyzing the time difference between Tuesday and Thursday
- From Tuesday 1 pm to Thursday 1 pm, there are 48 hours (24 hours in a day x 2 days).
- We need to consider the time difference between Tuesday and Thursday, which is 2 minutes fast - 1 minute slow = 1 minute fast.
- So, the watch gains 1 minute per 48 hours.
Step 2: Determining the time it takes for the watch to show the correct time
- Since the watch gains 1 minute per 48 hours, it will take 48 minutes to gain 1 minute.
- Therefore, it will take 48 x 12 = 576 minutes to gain 12 minutes (which is the time difference between 1 pm and 1 am).
- To determine the time when the watch shows the correct time, we need to add these 576 minutes to the initial time of 1 pm on Tuesday.
Step 3: Calculating the correct time
- Adding 576 minutes to 1 pm gives us 1 pm + 576 minutes = 5 am.
Therefore, the correct time will be displayed at 5 am on Wednesday.
Conclusion:
The correct answer is option 'B': 5:00 am on Wednesday.
1. The watch is 1 minute slow at 1 pm on Tuesday.
2. The watch is 2 minutes fast at 1 pm on Thursday.
Let's break down the problem step by step:
Step 1: Analyzing the time difference between Tuesday and Thursday
- From Tuesday 1 pm to Thursday 1 pm, there are 48 hours (24 hours in a day x 2 days).
- We need to consider the time difference between Tuesday and Thursday, which is 2 minutes fast - 1 minute slow = 1 minute fast.
- So, the watch gains 1 minute per 48 hours.
Step 2: Determining the time it takes for the watch to show the correct time
- Since the watch gains 1 minute per 48 hours, it will take 48 minutes to gain 1 minute.
- Therefore, it will take 48 x 12 = 576 minutes to gain 12 minutes (which is the time difference between 1 pm and 1 am).
- To determine the time when the watch shows the correct time, we need to add these 576 minutes to the initial time of 1 pm on Tuesday.
Step 3: Calculating the correct time
- Adding 576 minutes to 1 pm gives us 1 pm + 576 minutes = 5 am.
Therefore, the correct time will be displayed at 5 am on Wednesday.
Conclusion:
The correct answer is option 'B': 5:00 am on Wednesday.
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A watch is 1 minute slow at 1 pm on Tuesday and 2 minutes fast at 1 pm on Thursday. When did it show the correct time = ?a)1 : 00 am on Wednesdayb)5 : 00 am on Wednesdayc)1 : 00 pm on Wednesdayd)5 : 00 pm on WednesdayCorrect answer is option 'B'. Can you explain this answer?
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