Find the time if the minute hand of a clock has revolved through 30 ri

1.	Find the time if the minute hand of a clock has revolved through 30 right angles just after noon.
Answer» We know that: The time taken by the minute hand of a clock in tracing 4 right angles is 1 hour. So, we convert 30 right angles in terms of the multiple of 4 right angles i.e. 30 right angles = 7 x (4 right angles) + 2 right angles = 7 x 1 hr + \(\frac { 1 }{ 2 }\) hr = 7\(\frac { 1 }{ 2 }\) hours = 7 hours 30 minutes Hence, time = 7 : 30 p.m.

Find the time if the minute hand of a clock has revolved through 30 right angles just after noon.

Answer»

We know that:

The time taken by the minute hand of a clock in tracing 4 right angles is 1 hour.

So, we convert 30 right angles in terms of the multiple of 4 right angles

i.e. 30 right angles

= 7 x (4 right angles) + 2 right angles

= 7 x 1 hr + \(\frac { 1 }{ 2 }\) hr = 7\(\frac { 1 }{ 2 }\) hours

= 7 hours 30 minutes

Hence, time = 7 : 30 p.m.