Question

A clock shows 15 minutes extra time per hour. If it is set at accurate value at 3:00 pm, what will be the actual time when this clock shows 8:00pm ?​

Answer 1

Answer :-

→ In 60 minutes clock shows extra time = 15 minutes .

now,

→ Set at accurate value at = 3:00 pm

→ Upto 8 pm distance cover = 8pm - 3 pm = 5 hours = 300 minutes .

so, when the clock shows exactly 8pm, it covers 300 minutes.

→ The actual time covered by clock when the clock covers 300 minutes = (60/75) * 300 = 240 minutes .

then,

→ Actual time = 3PM + 240 minutes = 3PM + 4 hours = 7PM (Ans.)

Learn more :-

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