Boats & Streams Mcqs

Q.  A man swims downstream 72 km and upstream 45 km taking 9 hours each time; what is the speed of the current?

a. 3 kmph
b. 1.5 kmph
c. 13 kmph
d. 6.5 kmph


ANSWER: See Answer
 
72 — 9 DS = 8
? —- 1
45 —- 9 US = 5
? —- 1 S = ?
S = (8 – 5)/2 = 1.5
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