Question

Through
(1) does the hour hand of a clock turn in 20 minutes?
(ii) does the minute hand of a clock turn in 20 minutes?

Answer 1

Answer:

1) For a minute, the hour hand rotates by 30/60 = 1/2 degrees. hence, for 20 minutes it rotates by an angle of 20*1/2 = 10 degrees

Step-by-step explanation:

2) The angle between hr's hand and min's hand should be 10 deg. The angle between hour and minute hand in 4:20 is 10 degrees. For a minute, the hour hand rotates by 30/60 = 1/2 degrees. hence, for 20 minutes it rotates by an angle of 20*1/2 = 10 degrees.