Clocks - Edusaathi

www.edusaathi.com
Clocks
Total Time: 90 mins
Practise Exercise no. 1
1. An accurate clock shows 8 o'clock in the
morning. Through how may degrees will
the hour hand rotate when the clock shows
2 o'clock in the afternoon?
a) 144º
b) 150º
c) 168º
d) 180º
2. The reflex angle between the hands of a
clock at 10.25 is:
a) 180º
b) 192 1/2º
c) 195º
d) 197 1/2º
3. A clock is started at noon. By 10 minutes
past 5, the hour hand has turned through:
a) 145º
b) 150º
c) 155º
d) 160º
4. At what time between 7 and 8 o'clock will
the hands of a clock be in the same straight
line but, not together?
a) 5 min. past 7
b) 5 2/11 min. past 7
c) 5 3/11 min. past 7 d) 5 5/11 min. past 7
5. At what time between 5.30 and 6 will the
hands of a clock be at right angles?
a) 43 5/11 min. past 5
b) 43 7/11 min. past 5
c) 40 min. past 5
d) 45 min. past 5
6. The angle between the minute hand and
the hour hand of a clock when the time is
4.20, is:
a) 0º
b) 10º
c) 5º
d) 20º
7. At what angle the hands of a clock are
inclined at 15 minutes past 5?
a) 58 1/2º
b) 64º
c) 67 1/2º
d) 72 1/2º
8. At 3:40, the hour hand and the minute
hand of a clock form an angle of:
a) 120°
b) 125°
c) 130°
d) 135°
[email protected]
Total no. Of Qs: 55
9. The angle between the minute hand and
the hour hand of a clock when the time is
8.30, is:
a) 80º
b) 75º
c) 60º
d) 105º
10. How many times in a day, are the hands of
a clock in straight line but opposite in
direction?
a) 20
b) 22
c) 24
d) 48
11. At what time between 4 and 5 o'clock will
the hands of a watch point in opposite
directions?
a) 45 min. past 4
b) 40 min. past 4
c) 50 4/11 min. past 4
d) 54 6/11 min. past 4
12. At what time between 9 and 10 o'clock
will the hands of a watch be together?
a) 45 min. past 9
b) 50 min. past 9
c) 49 1/11min. past 9
d) 48 2/11 min. past 9
13. At what time, in minutes, between 3
o'clock and 4 o'clock, both the needles will
coincide each other?
a) 5 1/11"
b) 12 4/11"
c) 13 4/11"
d) 16 4/11"
14. How many times do the hands of a clock
coincide in a day?
a) 20
b) 21
c) 22
d) 24
15. How many times in a day, the hands of a
clock are straight?
a) 22
b) 24
c) 44
d) 48
16. How many times are the hands of a clock
at right angle in a day?
a) 22
b) 24
c) 44
d) 48
Page 1
www.edusaathi.com
17. At what time between 4 & 5 will the hands
of a watch point in opposite directions?
a) 43 min past 4
b) 42 5/11 min past 4
c) 50 4/11 min past 4
d) 40 min past 4
18. At what time between 9 & 10 will the
hands of a watch be together?
a) 45 min past 9
b) 49 1/11 min past 9
c) 48 min past 9
d) 47 min past 9
19. At what time between 5.30 & 6 will the
hands of a watch be at right angle?
a) 43 7/11 min past 5
b) 41 2/11 min past 5
c) 42 min past 5
d) 44 1/11 min past 5
20. At what time between 7 & 8 o'clock will
the hands of a watch be in the straight line
but no together?
a) 5 3/11 min past 7 b) 5 5/11 min past 7
c) 5 3/11 min past 7 d) 43min past 7
21. A watch which gains 5 seconds in 3
minutes was set right at 7 a.m. In the
afternoon of the same day, when the watch
indicated quarter past 4 o'clock, the true
time is:
a) 59 7/12 min. past 3
b) 4 p.m.
c) 58 7/11 min. past 3
d) 2 3/11 min. past 4
22. How much does a watch gain or lose per
day, if its hands coincide every 64
minutes?
a) 32 8/11 min.
b) 36 5/11 min.
c) 90 min.
d) 96 min.
23. A watch which gains uniformly is 2
minutes low at noon on Monday and is 4
min. 48 sec fast at 2 p.m. on the following
Monday. When was it correct?
a) 2 p.m. on Tuesday
b) 2 p.m. on Wednesday
c) 3 p.m. on Thursday
d) 1 p.m. on Friday
[email protected]
24. Between 4 & 5 O'clock, the time when the
hands coincide is:
a) 4:21 9/11
b) 4:24 3/11
c) 4:22
d) 4:23 9/11
25. At what angle the hands of a clock are
inclined at 15 minutes past 5?
a) 58 1/2 degrees
b) 64 degrees
c) 67 1/2 degrees
d) 72 1/2 degrees
26. My watch gains 5 min every hour. How
many degrees the second hand moves in
every min?
a) 360 degrees
b) 390 degrees
c) 330 degrees
d) 370 degrees
27. A clock is set right at 5am the clock loses
16min in 24 hours. What will be the right
time when the clock indicates 10am on the
4th day?
a) 10.30pm
b) 11pm
c) 10.45pm
d) 11.15pm
28. When the time in the clock is 7.20, then
the angle between the hands of the clock
is:
a) 100 degrees
b) 120 degrees
c) 90 degrees
d) 110 degrees
29. 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
30. At what time between 4 and 5 o'clock will
the hands of a watch point in opposite
directions?
a) 54 past 4
b) 53 7/11 past 4
c) 54 8/11 past 4
d) 54 6/11 past 4
31. A watch which gains 5 seconds in 3
minutes was set right at 7 a.m. In the
afternoon of the same day, when the watch
indicated quarter past 4 o'clock, the true
time is:
a) 4pm
b) 5pm
c) 6pm
d) 7pm
Page 2
www.edusaathi.com
32. A clock is set right at 5 a.m. The clock
loses 16 minutes in 24 hours. What will be
the true time when the clock indicates 10
p.m. on 4th day?
a) 11pm
b) 12pm
c) 1pm
d) 2pm
33. A watch which gains uniformly is 5 min.
slow at 8 o'clock in the morning on
Sunday and it is 5 min 48 sec. fast at 8
p.m. on following Sunday. When was it
correct?
a) 7pm on Wednesday
b) 20 min past 7pm on Wednesday
c) 15min past 7pm on Wednesday
d) 8pm on Wednesday
34. The minute hand of a clock overtakes the
hour hand at intervals of 65 minutes of the
correct time. How much a day does the
clock gain or lose?
a) 10 10/143 min
b) 10 1/143 min
c) 10 20/143 min
d) 10 30/143 min
35. At what time between 5.30 and 6 will the
hands of a clock be at right angles?
a) 43 5/11 min past 5
b) 43 7/11 min past 5
c) 45 min past 5
d) 47 min past 5
36. At what time between 5 and 6 o' clock are
the hands of a clock 3 minutes apart?
a) 24min
b) 12min
c) 13min
d) 14min
a) 360
c) 90
b) 180
d) 60
40. How much does a watch lose per day, if its
hands coincide ever 64 minutes?
a) 32 8/11
b) 33 8/11
c) 34 8/11
d) 35 8/11
41. The angle between the minute hand and
the hour hand of a clock when the time is
8:30
a) 80 Degrees
b) 75 Degrees
c) 60 Degrees
d) 105 Degrees
42. The angle between the minute hand and
the hour hand of a clock when the time is
8.30, is:
a) 15
b) 30
c) 60
d) 75
43. In every 60 minutes, the minute hand gains
-------- minutes on the hour hand.
a) 53
b) 54
c) 55
d) 56
44. What time between 4 and 5 o'clock will
the hands of a clock be at right angle?
a) 3 5/11
b) 4 5/11
c) 5 5/11
d) 6 5/11
45. At what angle the hands of a clock are
inclined at 15 minutes past 5?
a) 57.5 degrees
b) 67.5 degrees
c) 77.5 degrees
d) 87.5 degrees
37. Find the angle between the hour hand and
the minute hand of a clock when the time
is 3.25
a) 47.5 degrees
b) 57.5 degrees
c) 45.5 degrees
d) 55.5 degrees
46. When the hands are in the opposite
directions, they are ------- minute spaces
apart,
a) 15
b) 30
c) 60
d) 0
38. The reflex angle between the hands of a
clock at 10.25 is
a) 197 ½
b) 167 ½
c) 157 ½
d) 187 ½
47. At what time, in minutes, between 3
o'clock and 4 o'clock, both the needles will
coincide each other?
a) 11 4/11
b) 13 4/11
c) 15 4/11
d) 16 4/11
39. An accurate clock shows 8 o'clock in the
morning. Through how may degrees will
the hour hand rotate when the clock shows
2 o'clock in the afternoon?
[email protected]
48. At what time between 7 and 8 o'clock will
the hands of a clock be in the same straight
line but, not together?
Page 3
www.edusaathi.com
a) 5 5/11 min past 7
c) 7 5/11 min past 7
b) 6 5/11 min past 7
d) 8 5/11 min past 7
49. A watch which gains uniformly is 2
minutes low at noon on Monday and is 4
min. 48 sec fast at 2 pm on the following
Monday. When was it correct?
a) 2 pm on Tuesday
b) 2 pm on Wednesday
c) 3 pm on Thursday
d) 1 pm on Friday
50. At what time between 2 and 3 o'clock will
the hands of a clock be together?
a) 9 10/11 min past 2
b) 10 10/11 min past 2
c) 11 10/11 min past 2
d) 12 10/11 min past 2
51. When the two hands are at right angles,
they are ---------- minute spaces apart,
a) 13
b) 14
c) 15
d) 16
52. At 3:40, the hour hand and the minute
hand of a clock form an angle of:
a) 110
b) 120
c) 130
d) 140
53. At what time between 9 and 10 o'clock
will the hands of a watch be together?
a) 49 3/11 min past 11
b) 49 1/11 min past 9
c) 45 1/11 min past 9
d) 45 7/11 min past 11
54. The angle between the minute hand and
the hour hand of a clock when the time is
4.20, is:
a) 0
b) 10
c) 30
d) 60
55. A clock is started at noon. By 10 minutes
past 5, the hour hand has turned through
a) 145
b) 155
c) 165
d) 175
[email protected]
Page 4
Clocks Practise Exercise 1 (Solutions)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
d)
d)
c)
d)
b)
b)
c)
c)
b)
b)
d)
c)
d)
c)
c)
c)
c)
b)
a)
b)
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
b)
a)
b)
a)
a)
b)
b)
a)
a)
d)
a)
a)
b)
a)
b)
a)
a)
a)
b)
a)
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
b)
d)
c)
c)
b)
b)
a)
d)
b)
b)
c)
c)
b)
b)
b)