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khan razia

· started a discussion

· 1 Months ago

wrong ans (Question: 220982.0 )

plz dont provide wrong ans

Question:
A clock gains five minutes every hour. What will be the angle traversed by the second hand in one minute ?
Options:
A) 360°
B) 360.5°
C) 390°
D) None of these 
Solution:
Ans: (c) 


Gain in seconds every hour = 5*60 = 300 seconds


Gain in seconds every minute = 300/60 = 5 seconds


So, angle transverse by second hand in extra 5 seconds = 5*360/60 = 30


Total angle transverse = 360 + 30 = 390.


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