Basic Computer Knowledge Test Questions and Answers

Boats and Streams :(31) MCQs with Answers

1.

A man can row downstream at the rate of 24 Kmph and upstream at 7 Kmph. Find the man’s rate in still water and rate of current?

   A.) 15.5 Kmph, 8.5 Kmph
   B.) 17 Kmph, 8.5 Kmph
   C.) 814 Kmph, 7 Kmph
   D.) None of these

Answer: Option 'A'

Rate of still water = 1/2 (down stream + upstream) 
= 1/2 (24 + 7) = 15.5 Kmph 
rate of current = 1/2 (down stream - upstream) 
= 1/2 (24 - 7) = 1/2 (17) = 8.5 kmph

Boats and Stream Download Pdf