ClockReasoning SSC State Level Teaching Exams

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Question1) At what time between 7 and 8 will the hands of a clock be in the same straight line but, not together?

- Published on 15 May 17


a. 5 (5/11) min past 7

b. 5 (4/11) min past 7

c. 5 (3/11) min past 7

d. 5 (2/11) min past 7

Option- ['A', 'B', 'C', 'D']

Answer: A

Explaination: When the hands of the clock are in the same straight line but not together, they are 30 minute spaces apart.


At 7 o'clock, they are 25 min. spaces apart.


Minute hand must gain only 5 min. space.


55 min. spaces are gained in 60 min.


5 min. spaces would be gained in (60/55) x 5 = 5 (5/11) min


Required time = 5 (5/11) min past 7

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Question2) At what time between 4 and 4.59 will the hands of a watch point in opposite directions?

- Published on 15 May 17


a. 45 min. past 4

b. 40 min. past 4

c. 50 (4/11) min. past 4

d. 54 (6/11) past 4

Option- ['A', 'B', 'C', 'D']

Answer: D

Explaination: At 4 o'clock, the hands of the watch are 20 min. spaces apart.


To be in opposite directions, they must be 30 min. spaces apart.


Minute hand must gain 50 min. spaces.


55 min. spaces are gained in 60 min.


50 min. spaces are gained in 60/55 x 50 = 54 (6/11) min


Required time = 54 6/11 min past 4

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Question3) The angle between the minute hand and the hour hand of a clock when the time is 8.30, is

- Published on 15 May 17


a. 65

b. 75

c. 85

d. 90

Option- ['A', 'B', 'C', 'D']

Answer: B

Explaination: At 8 o’ clock, the hour hand is at 240 degrees from the vertical.


In 30 minutes,

Hour hand = 240 + 30 x (0.5) = 240 + 15 = 255 (The hour hand moves at 0.5 dpm)


Minute hand = 30 x (6) = 180 (The minute hand moves at 6 dpm)


Difference or angle between the hands = 255 - 180 = 75 degrees.

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