Problems on Clock
II
EXERCISES II
1.
An
accurate clock shows 7 : 15 a.m. , through how may degrees will the hour hand
rotate when the clock shows 2 : 45 p.m.?
1)
144° 2) 150° 3) 225° 4) 168° 5) None of these
2. How many times in a day, the hands of a clock are straight?
1) 22 2)
24 3) 44
4) 48 5)
None of these
3.
It
is between 4 P.M. and 5 P.M. and the
angle between the hour and the minute hand of clock is 10°. What time does the
clock show?
1) 4.10 pm 2) 4.15 pm
3) 4.20 pm 4) 4.25 pm 5) 4.15 pm
4.
It
is between 1 A.M. and 2 A.M. and the
angle between the hour and the minute hand of clock is 135°. What time does the
clock show?
1) 1.25 am 2) 1.30 am 3)
1.35 am 4) 1.40 am 5)
1.45 am
5.
At
what angle will the pointers be inclined at 2hr 15 min?
1) 200° 2) 207° 3) 209°
4) 215°
5) None of these
6.
The
angle between the minute hand and the hand of a clock when the time is 5.30, is
1) 11°
2) 13° 3)
15° 4) 18° 5) 20°
7.
If
a clock strikes six in 30 seconds, then it will strike 12 in how many seconds?
1) 50 sec 2) 60 sec
3) 65 sec
4) 66 sec 5) 69 sec
8.
At
what time between 5 and 6 O' clock are the hands of a clock 3 minute spaces
apart?
1) 10min 2)
12min 3)
13min 4)
14min 5) 24min
9. A watch gains 10 seconds in 6 minutes
and was set right at 9 AM. What time will it show at 11 PM on the same day ?
1) 11 : 27 : 41 AM 2) 9: 51 : 04 AM 3) 10 : 45 : 15 PM 4) 11 : 23 : 20 PM
5) 11 : 20 : 23 PM
10.
A
watch which gains 10 seconds in 6 minutes was set right at 9 a.m. In the
afternoon of the same day, when the watch indicated quarter past 6 o'clock, the
true time is:
1) 6pm 2) 7pm 3) 8pm 4) 9pm 5) 11pm
11.
A
clock is set right at 6 a.m. The clock loses 16 minutes in a day. What will be
the true time when the clock indicates 11 p.m. on 4th day?
1) 11am 2) 12am 3) 1am 4)
2am 4) 3am
12.
A
Wall Clock loses 10 minutes in every 2 hours
and was set right at 7am on a Sunday. When will it show the correct time again?
1) 10AM on Sunday 2) 9AM on Sunday
3) 7AM on Saturday 4) 9AM Saturday 5)
8AM on Saturday
13.
Suppose
a Table Clock was correct at midnight,
but then it began to lose 15 minutes each hour. It now shows 6 a.m. but it
stopped 5 hours ago. What is the correct time now?
1) 9.30 a.m. 2) 11 a.m. 3) 11.30 a.m 4) 1 p.m 5) 1.30 p.m.
14.
A
watch gains uniformly, It was 3 min slow at 7 am on Monday the 3rd May, and
fast by 5 min 36sec on May 12th 6 am. When was it correct?
1) 7am 10th May 2) 8 pm 8th May 3) 10am 6th May
4) 4pm 6th May 5) 9am 7th May
15.
Two
clocks are set to show 10am on Monday. One clock will
run 4 minutes faster in a day. The other clock will run 4 minutes slower in
every 36 hours. When will both the clocks show the same time again?
1) 12:30 at night, after 100 days 2) 12 noon, after 855 days
3) 1:30 am after 120days 4) 12 am after 105days
16.
It
was between 3 and 4 o'clock; but I, mistaking the hour hand for the minute
hand thought that it was 55 min later the correct time.
The correct time was
1) 12 minutes past 3 2) 24 minutes past 3
3) 36 minutes past 3 4) 48 minutes past 3 5) None of these
ANSWER
1)
225 2) 44 3) 4.20 pm 4) 1.30 am
5) 215° 6) 15°
7) 66 sec 8) 24min 9) 4) 11 : 23 : 20 PM 10) 6pm 11) 12pm 89 hrs 12) 7AM
on Saturday 13) 1 p.m. 14) 9am 6th May 15) 5) 10am
after 108 days 16) 17)
18) 19) 20)
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