A clock is started at noon. By 10 minutes past 5, the hour hand has turned through

A 145

B 155

C 165

D 175

Solution

Correct Answer: Option B

Angle traced by hour hand in 12 hrs = 360º

 

Angle traced by hour hand in 5 hrs 10 min. i.e  \(\frac{31}6\) hrs = \(\left(\frac{360}{12}\times\frac{31}6\right)^0\) =  \(155^0\)

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