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I have to reach a place at fixed time. If I walk at 3 km/hr. I will be late for 20 minutes. If I walk at 4 km/hr, I will reach there 10 minutes early. What distance I have to travel?

A7 km

B6 km

C12 km

D2 km

Answer:

B. 6 km

Read Explanation:

D = (S1 x S2)/(S1 - S2) x T = (3x4)/1 x 30/60 = 6km.


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