Clock - Arithmetic Aptitude Questions and Answers

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The angle between the minute hand and the hour hand of a clock when the time is 4.20, is:

0°

10°

5°

20°

Answer : Option B

Explanation :

Angle traced by hour hand in $\frac { 13 } { 3 }$ hrs=[ $\frac { 360 } {1 2 }$ x $\frac { 13 } { 3 }]^o$ =130°.

Angle traced by min. hand in 20 min. =[ $\frac { 360 } {1 2 }$ x $20]^o$ = 120°.

Required angle = (130 - 120)° = 10°

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