On a certain day x drives his car from his home at the rate of 20 Km/litr and reaches his office 10 minutes late. The next day he drives at 30 Km/hr and reaches his office 5 minutes early. Calculate the distance between X's home and office in Km?
A 17.5
B none of
C 15
D 12
Solution
Correct Answer: Option C
x/20-2/30=15/60
x=15
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