A boat can move upstream at 33 kmph and downstream at 35 kmph, then the speed of the current is?
Choose one:
A) 1
B) 2
C) 7
D) 8
E) 9
US = 33   DS = 35   M = (35 - 33)/2= 
<gadget id="calculator">(35 - 33)/2</gadget>
<output>1</output>
1   1nswer: 1
<result>A</result>
A boat can move upstream at 33 kmph and downstream at 35 kmph, then the speed of the current is?