Boats & Streams Mcqs


Q.  A boat goes 100 km downstream in 10 hours, and 75 m upstream in 15 hours. The speed of the stream is________?

a. 7 km/h
b. 5 km/h
c. 3 km/h
d. 2 (1/2) km/h


ANSWER: See Answer
 
100 — 10 DS = 10
? —- 1
75 —- 15 US = 5
? —– 1 S = (10 – 5)/2

= 2 2 ½ kmph
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