Question

A man had to travel a certain distance .He covered one FORTH of it at 4kmph and the total time taken is 51 minutes , then the total distance is

Answer 1

Answer:

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Step-by-step explanation:

Let total distance be d

total distance be dAs, travelled 2/3 rd of d with 4kmphso, time = (2x/3)/4 hRest 1/3 rd of d with 5kmphso, time = (x/3)/5 hAs, total time = 42 min = 42/60 h or, 42/60 = 2x/12 + x/15 or, 42/60 = (10x + 4x)/60

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