A clock gains 5 minutes in one hour. Therefore, the angle traversed by the minute hand in 1 hour is `360o` (b) `390o` (c) `390. 5o` (d) None of these

Options

A. `360^@`
B. `360.5^(@)`
C. `390^(@)`
D. `380^(@)`

Answer

B

Explanation

Each second - space equals ` 1^(@)` . A clock gains five minutes every hours .
It means the clock gains ` (5)/(60)` minutes in one minute .
`(5)/(60)xx 360 = 30`
the second hand will tranverse ` 360.5^@` in one minute .