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    a watch which gains uniformly is 6 min slow at 5 p.m. on monday. on the following monday at 9 am, it was 10 min 40 seconds fast. when was it correct?

    Mohammed

    Guys, does anyone know the answer?

    get a watch which gains uniformly is 6 min slow at 5 p.m. on monday. on the following monday at 9 am, it was 10 min 40 seconds fast. when was it correct? from screen.

    A watch which gains uniformly, is 5 min slow at 8 o'clock in the morning on Sunday and it is 5 min 48 sec fast at 8 p.m on following Sunday. When was it correct?

    Click here👆to get an answer to your question ✍️ A watch which gains uniformly, is 5 min slow at 8 o'clock in the morning on Sunday and it is 5 min 48 sec fast at 8 p.m on following Sunday. When was it correct?

    Question

    A watch which gains uniformly, is 5 min  slow at 8 o'clock in the morning on Sunday and it is 5 min  48 sec  fast at 8 p.m  on following Sunday. When was it correct?

    A

    20 min  past 7 p.m. on Wednesday

    B

    15 min  past 7 p.m. on Thursday

    C

    29 min  past 8 p.m. on Wednesday

    D

    20 min  past 7 p.m. on Thursday

    Medium Open in App

    Updated on : 2022-09-05

    Solution Verified by Toppr

    Correct option is A)

    Time from 8 a.m  on Sunday to 8 p.m on following Sunday = 7 days 12 hours = 180 hours

    ∴ The watch gains (5+5

    5 4 ​ ) min  or 5 54 ​ min in 180 hrs Now 5 54 ​

    min are gained in 180 hrs

    ∴ 5 min. are gained in (180×

    54 5 ​

    ×5) hrs. = 83 hrs 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

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    Q.1. At what time between 5 and 6 are the hands 8 minute spaces apart?

    A. 24 min past 5 B. 30 min past 5 C. 36 min past 5 D. 20 min past 5

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    Q.2. The minute hand of a clock overtakes the hour hand at intervals of 63 minutes of correct time. How many minutes in a day does the clock lose or gain?

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    Q.3. A watch which gains uniformly is 6 min slow at 5 p.m. on Monday. On the following Monday at 9 am, it was 10 min 40 seconds fast. When was it correct?

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    B. 2 : 36 am on Thursday

    C. 2 : 36 pm. on Thursday

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    [Solved] A watch which gains uniformly is 5 minutes slow at 9 o&rsquo

    In defective clock slow - fast type we use formula Time = ((S/F)/S + F)) × total time Note: In numerator we take that value whichever comes first in the

    Home Logical Reasoning Clock and Calendar

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    A watch which gains uniformly is 5 minutes slow at 9 o’clock in morning on Monday and is 5 min 48 seconds fast at 9 pm on following Monday. Then when was it correct?

    Thursday 8:20 Friday 8:20 Thursday 7:20 Saturday 8:20 Friday 7:20

    Answer (Detailed Solution Below)

    Option 1 : Thursday 8:20

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    Detailed Solution

    Download Solution PDF

    In defective clock slow - fast type we use formula

    Time = ((S/F)/S + F)) × total time

    Note: In numerator we take that value whichever comes first in the question, and total time is the time which clock moves in the question.

    The following Monday = Monday of the next week (7 days).

    Total time = 24 × 7 = 168 hrs + 12 hrs (9 am to 9 pm).

    Total time = 180 hours.

    Here, 5 minute comes first.

    5 minutes 48 seconds = 5 + 48/60 = 5 + 4/5 = 29/5.

    Thus, (5/(5 + 29/5)) × 180 = 83 hrs 20 minutes

    Thus, after 83 hrs 20 minutes from Monday 9 am, the clock shows the correct time.

    I.e. Thursday 8:20 pm.

    Hence, correct answer will be Thursday 8:20.

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    Mohammed 2 month ago
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