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there are 2 clocks....one gains 2 min per day....one loses 3 min per day........they were started at the same time..then they will tell the same time within 1)a month 2)a year 3)a week 4) a day

there are 2 clocks....one gains 2 min per day....one loses 3 min per day........they were started at the same time..then they will tell the same time within 1)a month 2)a year 3)a week 4) a day


 

Grade:9

2 Answers

Abhishek Sharma
16 Points
10 years ago

Assume first clock gains two minutes and second loses 3 minutes.

W.R.T. clock 1, clock 2 looses 5 minutes per day.

To show the same time it has to loose 12 hours at the rate of 5hrs/day.

 

No. of days = (12hrs X 60min)/5min-per-day

                 = 144days

                 = Ans (2) less than a year.

Ashwin Sinha
520 Points
10 years ago

A year!  Do it by elimination method!!!

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