Clock

11 At what time between 9 o'clock and 10 o'clock, will the hands of a clock be in the same straight line but not together?

12 How many times in a day, are the hands of a clock at right angle?

13 At what point of time after 3 O' clock, hour hand and the minute hand are at right angles for the first time?

14 At what time between 1 o'clock and 2 o'clock, will the hands of a clock be together?

15 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?

16 At what time between 3 o'clock and 4 o'clock, will the hands of a clock be in opposite directions?

17 Number of hours and minutes from 6 : 14 am to 8 : 02 pm on the same days is

18 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?

19 At what time between 5 o’clock and 6 o’clock will the hands of a clock be at right angle:

20 The reflex angle between the hands of a clock at 10.25 is