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Arithmetic aptitude :: Boats and Streams :: Data Sufficiency 1




Direction to solve:

Each of the questions given below consists of two statements numbered I and II given below it. Please read the questions carefully and decide whether the data provided in the statement(s) is / are sufficient to answer the given question.


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1.

A man takes a total time of $3$ hours to swim down stream from $A$ to $B$ and back from $B$ to $A$. Find the speed of the man in still water ?

I. The river current speed is $1$ km/hr.

II. The distance between $A$ and $B$ is $4$ km.


A) I alone sufficient while II alone not sufficient to answer

B) II alone sufficient while I alone not sufficient to answer

C) Either I or II alone sufficient to answer

D) Both I and II are not sufficient to answer

E) Both I and II are necessary to answer



2.

What the speed of the man in still water?

I. The man can swim a distance of $48$ kms in $6$ hours with upstream.

II. The man can swim the same distance in $4$ hours with downstream.


A) I alone sufficient while II alone not sufficient to answer

B) II alone sufficient while I alone not sufficient to answer

C) Either I or II alone sufficient to answer

D) Both I and II are not sufficient to answer

E) Both I and II are necessary to answer



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