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?  Choose the correct choice from the following:  A) 12.5 kmph  B) 10 kmph  C) 9 kmph  D) 8.5 kmph  E) None of these
Explanation:   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   =&gt;15=x+2.5   =&gt;x=12.5   Speed of man against the current: Speed of man in still water-Speed of current   =&gt;12.5-2.5= 
<gadget id="calculator">12.5-2.5</gadget>
<output>10</output>
&gt;10 km/hr   ANSWER 10 kmph
<result>B</result>
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?