A person can row at 10 kmph in still water. If the velocity of the current is 2 kmph and it takes him 5 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) 15km
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= 5   2x+3x = 120   x = 24 km   24kmnswer is 24km
<result>A</result>
A person can row at 10 kmph in still water. If the velocity of the current is 2 kmph and it takes him 5 hour to row to a place and come back, how far is the place?