Exercise :: Clock  General Questions
 Clock  Important Formulas
 Clock  General Questions
6.  At what time between 7 and 8 o'clock will the hands of a clock be in the same straight line but, not together? 

Answer: Option D Explanation: 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 will have to gain only 5 min. spaces. 55 min. spaces are gained in 60 min.

7.  At what time between 5.30 and 6 will the hands of a clock be at right angles? 

Answer: Option B Explanation: At 5 o'clock, the hands are 25 min. spaces apart. To be at right angles and that too between 5.30 and 6, the minute hand has to gain (25 + 15) = 40 min. spaces. 55 min. spaces are gained in 60 min.

8.  The angle between the minute hand and the hour hand of a clock when the time is 4.20, is: 

Answer: Option B Explanation:
Required angle = (130  120)° = 10°. 
9.  At what angle the hands of a clock are inclined at 15 minutes past 5? 

Answer: Option C Explanation:

10.  At 3:40, the hour hand and the minute hand of a clock form an angle of: 

Answer: Option C Explanation: Angle traced by hour hand in 12 hrs. = 360°.
Angle traced by minute hand in 60 min. = 360°.
Required angle (240  110)° = 130°. 