Question

What is the ratio between the speeds of the hour hand and that of the minute hand of a clock?
1. 2 : 9
2. can't be determined
3. 1 : 12
4. 5 : 24

Answer 1

Correct Answer - Option 3 : 1 : 12

When the minute hand covers 360 degrees the hour hand covers only 30 degrees.
\(360/30 = 12/1\)

Hence, the ratio of speeds of the hour hand and the minute hand is 1:12.