856
Q:

# A clock is set right at 8 a.m. The clock gains 10 minutes in 24 hours will be the true time when the clock indicates 1 p.m. on the following day?

 A) 48 min. past 12. B) 46 min. past 12. C) 45 min. past 12. D) 47 min. past 12.

Answer:   A) 48 min. past 12.

Explanation:

Time from 8 a.m. on a day to 1 p.m. on the following day = 29 hours.

24 hours 10 min. of this clock = 24 hours of the correct clock.

$1456$ hrs of this clock = 24 hours of the correct clock.

29 hours of this clock = $24*6145*29$ hrs of the correct clock

= 28 hrs 48 min of the correct clock.

Therefore, the correct time is 28 hrs 48 min. after 8 a.m.

This is 48 min. past 12.

Q:

A clock shows 2 am now Find the total rotation of the minute hand, in degrees, of the clock when it will show 9 pm on the same night?

 A) 8600° B) 6840° C) 6470° D) 5930°

Explanation:

26 2151
Q:

What will be the measure of the acute angle formed between the hour hand and the minute hand at 6:43 a.m.?

 A) 21.5 deg B) 78 deg C) 56 deg D) 56.5 deg

Explanation:

17 1922
Q:

A watch gains 5 seconds per minute and was set right at 6 A.M. What would be the time shown on the watch when the correct time is 2 PM?

 A) 2.20 PM B) 2.50 PM C) 2.30 PM D) 2.40 PM

Explanation:

12 2322
Q:

What would be the smaller of the two angles formed by the hour hand and the minute hand at 3:47 p.m?

 A) 168.5 deg B) 162 deg C) 166.5 deg D) 165 deg

Explanation:

7 2082
Q:

A watch shows 6 p.m. where the hour hand points east. In which direction is the minute hand facing when the time is 9.15 p.m?

 A) West B) South C) East D) North

Explanation:

15 2666
Q:

What fraction of 2 hours is 12 seconds?

 A) 1/200 B) 1/300 C) 1/400 D) 1/600

Explanation:

13 1728
Q:

Three clocks are designed to alarm in every hour, two hours and three hours respectively. If they all alrmed together three hours before, then after how many hours will they next alarm together?

 A) 3 hours B) 6 hours C) 2 hours D) 1 hour

Explanation:

10 1611
Q:

In a week, how many times are the hands of a clock at right angles with each other?

 A) 308 B) 44 C) 24 D) 154