It takes 2 mins to reach a destination using Road 1. and it takes 8 mins to reach the same desitination using Road 2. Well I will use Road1. How to calculate the efficiency of road 1 over road 2 ? Thaks in advance.
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Your question is not very clear to me. But i would say that since Road 1 takes 1/4th the time taken by Road 2, Road 1 is 4 times as efficient as Road 2.
Well the answer should be Road 1 is 4 times as efficient as Road 2.
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