The speed of a boat in still water is 50kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?  Choose the correct choice from the following choices:  A) kmph  B) kmph  C) kmph  D) kmph  E) kmph
Speed downstream = 50 + 20= 
<gadget id="calculator">50 + 20</gadget>
<output>70</output>
70 kmph   Speed upstream= 50 - 20= 
<gadget id="calculator">50 - 20</gadget>
<output>30</output>
30 kmph   Answer:kmph
<result>B</result>
The speed of a boat in still water is 50kmph and the speed of the current is 20kmph. Find the speed downstream and upstream?