A man reaches his office 20 min late, if he walks from his home at 3 k – McqOptions

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1.	A man reaches his office 20 min late, if he walks from his home at 3 km per hour and reaches 30 min early if he walks 4 km per hour. How far is his office from his house ?
A.	20 km
B.	16 km
C.	14 km
D.	10 km
Answer» E.

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