Question

A clock gains 5 minutes every hour. Then the angle traversed by the second's hand in one minute will be

विकल्प

• 390°

• 380°

• 360.5°

• 360°

Answer 1

390°

Explanation:

Gain in 60 min = 5 min

in 1 min`=5/60` min=`5/60xx60` sec = 5 sec

Angle traversed by second hand

`=360^°+5/60xx360^°=390^°`