1.

A Man Rows To A Place 48 Km Distant And Come Back In 14 Hours. He Finds That He Can Row 4 Km With The Stream In The Same Time As 3 Km Against The Stream. The Rate Of The Stream Is ?

Answer»

Suppose he MOVE 4 km downstream in x hours. Then,

Speed downstream =(4/x)km/hr

Speed up STREAM =(3/x)km/hr

48/4/x+48(3/x)=14 or x=1/2

So,speed downstream = 8 km/hr,speed UPSTREAM =6km/hr

Rate of the stream = 1/2(8-6)km/hr =1 km/hr.

Suppose he move 4 km downstream in x hours. Then,

Speed downstream =(4/x)km/hr

Speed up stream =(3/x)km/hr

48/4/x+48(3/x)=14 or x=1/2

So,speed downstream = 8 km/hr,speed upstream =6km/hr

Rate of the stream = 1/2(8-6)km/hr =1 km/hr.


Discussion

No Comment Found

Related InterviewSolutions