Question of The Day28-05-2020

# What will be the angle between hour and minute hand when clock is showing 7 : 12?

Correct Answer : c ) 144o

Explanation :

7 : 12 = 7 hours and 12 minutes

In 12 hours, hour hand moves 360°

So, in 7 hours hour hand will move= $${360 \over 12}$$×7=210°

Now, for every 60 minutes hour hand will move =$${1 \over 12}$$ x 360o= 30°

Therefore, in 12 minutes hours hand will move =$${30 \over 60}$$×12=6o

Therefore at 7 : 12, hour hand will move  = 210 + 6 = 216° clockwise

Also, in 60 minutes, minute hand moves = 360°

So, in 12 minutes minute hand move=$${360 \over 60}$$×12=72o clockwise

Therefore angle between hour and minute hand at 7 : 12 will be

Þ 2160 – 720 = 144°

Hence, (c) is the correct answer.

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Such type of question is asked in various government exams like SSC CGL, SSC MTS, SSC CPO, SSC CHSL, RRB JE, RRB NTPC etc.

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