# If Abhishek travels at a speed of 25 km/hr in his car he reaches his office 4 minutes late.If he drives at a speed of 30 km/hr he reaches 10 minutes early.Find the distace between his office and his home.

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by Tirkey

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by Tirkey

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x/s=t...........

now

by 1 st condition...

x/25=t+1/15...................................( 4 minutes=1/15 hours)

and by second equation

x/30=t-1/6

from above equations,

x/25 -1/15=x/30 +1/6

so

x=35 km

ans is 35 km