A clock is set right at 8 a.m. The clock gains 10 minutes in 24 hours. What will be the true when the clock indicates 1 p.m. on the following day ?
A). 48 min. past 12
B). 38 min. past 10
C). 28 min. past 12
D). 28 min. past 10
The angle between the minute hand and the hour hand of a clock when the time is 8.30 is :
A). 80
B). 75
C). 60
D). 105
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). 5
D). 20
How many time do the hands of a clock coincide in a day ?
A). 20
B). 21
C). 22
D). 24
How many times in a day, the hands of a clock are straight ?
A). 22
B). 24
C). 44
D). 48