Question

5
If Ritu can row downstream 20 km in 2
hours, and upstream 4 km in 2 hours ,
then her speed of rowing in still water
and the speed of current respectively
is :
(1 Point)
7 km / hr ,10 km / hr
6 km / hr, 4 km / hr
15 km / hr , 21 km / hr
none of the above​

Answer 1

First divide with the questions you have get the text book and you can multiply with the answer with which you get