A person can row at 10 kmph in still water. If the velocity of the current is 2 kmph and it takes him 10 hour to row to a place and come back, how far is the place?	Choose one:  A) 24km  B) 30km  C) 48km  D) 12km  E) 48km
Speed of down stream = 10+2= 
<gadget id="calculator">10+2</gadget>
<output>12</output>
12kmph   speed of upstream= 10-2= 
<gadget id="calculator">10-2</gadget>
<output>8</output>
8kmph   Let the required distance be xkm   x/12 + x/8= 10   2x+3x = 240   x = 48 km   Answer is 48km
<result>E</result>
A person can row at 10 kmph in still water. If the velocity of the current is 2 kmph and it takes him 10 hour to row to a place and come back, how far is the place?