A clock is set right at 8 am. The clock gains 10 {\min} in 24 {h}. What will be the right time when the clock indicates 1 {pm} on the following day?

NIMCET 2011 Question Paper with solutions

Question : 80 of 120

Marks: +1, -0

A clock is set right at 8 am. The clock gains

10 {min}

24 {h}

. What will be the right time when the clock indicates

1 {pm}

on the following day?

Solution:

Time from

8 {am}

of a particular day to

1 {pm}

on the following day

=29 {h}

. Now, the clock gains

10 {min}

in 24

{h}

, it. means that

24 {h} 10 {min}

of this clock is equal to

24 {h}

of the correct clock.

\;{145}/{6} {h}

of this clock

=24 {h}

of the correct clock

24 {h}

of this clock

=\;{24}/{145} × 6 × 29

=28 {h}, 48 {min}

of the correct clock

24 {h}

of this clock

=28 {h} 48 {min}

of the correct clock. It means that the clock in question is 12 min faster than the correct clock. Therefore, when clock indicates

1 {pm}

the correct time will be 48 min past

12 .

Go to Question:

Prev Question

Next Question