Time and Distance - Quantitative Aptitude (MCQ) questions for Q. 82

Q.  Speed of a man with current measures 15 km/hr. Speed of current is 2.5 km/hr. What is the speed of man against the current?
- Published on 15 Jun 15

a. 12.5 kmph
b. 10 kmph
c. 9 kmph
d. 8.5 kmph

ANSWER: 10 kmph
 
Let the speed of man in still water be x km/hr

Now, speed with current=15 km/hr

Speed of current: 2.5 km/hr

Speed of man with current: Speed of man in still water+Speed of current

=>15=x+2.5

=>x=12.5

Speed of man against the current: Speed of man in still water-Speed of current

=>12.5-2.5

=>10 km/hr

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