A) 3 : 5
B) 1 : 1
C) 1 : 2
D) 2 : 3
Correct Answer: C
Solution :
Speed downstream = (22+4.5) km/hr = 26.5 km/hr Time taken in going 53 kms along the stream = \[\frac{53}{26.5}=2\,hours\] Speed upstream = (22 - 4.5) = 17.5 km/hr Time taken in going 70 kms against stream = \[\frac{70}{17.5}=4\]hours Required ratio = \[\frac{2}{4}\Rightarrow \]1: 2You need to login to perform this action.
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