A boat can move upstream at 34 kmph and downstream at 30 kmph, then the speed of the current is? Choose the correct choice from the following.
A) 2
B) 9
C) 5
D) 9
E) 5
US = 34   DS = 30   M = (34 - 30)/2= 
<gadget id="calculator">(34 - 30)/2</gadget>
<output>2</output>
2   2nswer: 2
<result>A</result>
A boat can move upstream at 34 kmph and downstream at 30 kmph, then the speed of the current is?