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A watch gains 7 minutes and 6 seconds every 6 days. If the r

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A watch gains 7 minutes and 6 seconds every 6 days. If the r [#permalink] New post 27 Jun 2018, 08:22
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A watch gains 7 minutes and 6 seconds every 6 days. If the rate of gain is constant, how much does the watch gain in one day?

(A) 1 min 1 sec

(B) 1 min 6 sec

(C) 1 min 11 sec

(D) 1 min 16 sec

(E) 1 min 21 sec
[Reveal] Spoiler: OA

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Re: A watch gains 7 minutes and 6 seconds every 6 days. If the r [#permalink] New post 28 Jun 2018, 11:56
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Carcass wrote:
A watch gains 7 minutes and 6 seconds every 6 days. If the rate of gain is constant, how much does the watch gain in one day?

(A) 1 min 1 sec

(B) 1 min 6 sec

(C) 1 min 11 sec

(D) 1 min 16 sec

(E) 1 min 21 sec


Solution plz...Carcass
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Re: A watch gains 7 minutes and 6 seconds every 6 days. If the r [#permalink] New post 28 Jun 2018, 12:53
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Carcass wrote:
A watch gains 7 minutes and 6 seconds every 6 days. If the rate of gain is constant, how much does the watch gain in one day?

(A) 1 min 1 sec

(B) 1 min 6 sec

(C) 1 min 11 sec

(D) 1 min 16 sec

(E) 1 min 21 sec



Here;
7 minutes and 6 seconds = 7*60 + 6 = 426 seconds, a watch gain every 6days.

Therefore the watch gain in 1 day = 426/6 = 71 seconds = 1 minute and 11 seconds.
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Re: A watch gains 7 minutes and 6 seconds every 6 days. If the r [#permalink] New post 03 May 2020, 06:57
pranab223 wrote:
Carcass wrote:
A watch gains 7 minutes and 6 seconds every 6 days. If the rate of gain is constant, how much does the watch gain in one day?

(A) 1 min 1 sec

(B) 1 min 6 sec

(C) 1 min 11 sec

(D) 1 min 16 sec

(E) 1 min 21 sec



Here;
7 minutes and 6 seconds = 7*60 + 6 = 426 seconds, a watch gain every 6days.

Therefore the watch gain in 1 day = 426/6 = 71 seconds = 1 minute and 11 seconds.


why is considering unitary method in minutes wrong?

for ex-
6days =====> 7.06mins

1day ========> 7.06/6= 1.17mins
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Re: A watch gains 7 minutes and 6 seconds every 6 days. If the r [#permalink] New post 03 May 2020, 07:49
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prototypevenom wrote:

why is considering unitary method in minutes wrong?

for ex-
6days =====> 7.06mins

1day ========> 7.06/6= 1.17mins


How you got 6days =====> 7.06mins ?- help me to understand

time conversion don't work the way you mentioned.
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Re: A watch gains 7 minutes and 6 seconds every 6 days. If the r [#permalink] New post 03 May 2020, 23:38
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7 minute and 6 seconds is not 7.06 minute.......(it is not a fraction of 100 but a fraction of 60)
If you have to apply unitary method do this....

7 m and 6 sec = 7.1 minute.......bcoz..6 sec is 0.1 of a minute. (6/60)

=> 6 days = 7.1
=> 1 day = 1.18333 minute
=> ans is 1.18333 * 60 sec = 71 secs = 1 minute and 11 secs.....:)..
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Re: A watch gains 7 minutes and 6 seconds every 6 days. If the r [#permalink] New post 04 May 2020, 02:45
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sumit0503 wrote:
7 minute and 6 seconds is not 7.06 minute.......(it is not a fraction of 100 but a fraction of 60)
If you have to apply unitary method do this....

7 m and 6 sec = 7.1 minute.......bcoz..6 sec is 0.1 of a minute. (6/60)

=> 6 days = 7.1
=> 1 day = 1.18333 minute
=> ans is 1.18333 * 60 sec = 71 secs = 1 minute and 11 secs.....:)..


Yeah, both ways are correct. you can convert to minutes (decimal value) or seconds (integer value).

Work out what suits you. Time matters

Cheers!!!!!!!!!!
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Re: A watch gains 7 minutes and 6 seconds every 6 days. If the r   [#permalink] 04 May 2020, 02:45
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