I reach my office 40 minutes late if I walk from my house at the speed of 3 km/hour. I shall be 30 minutes early if I walk at the speed of 4 km/hour. Find the distance between my house and the office in km.

I reach my office 40 minutes late if I walk from my house at the speed

1.	I reach my office 40 minutes late if I walk from my house at the speed of 3 km/hour. I shall be 30 minutes early if I walk at the speed of 4 km/hour. Find the distance between my house and the office in km.
A.	11 km
B.	12 km
C.	13 km
D.	14 km
Answer» E.

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I reach my office 40 minutes late if I walk from my house at the speed of 3 km/hour. I shall be 30 minutes early if I walk at the speed of 4 km/hour. Find the distance between my house and the office in km.

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