IBPS PO Mains 2016 Paper for online practice

If the speed downstream is a kmph and the speed upstream is b kmph then
Speed of the stream =

1

2

(a - b) kmph
Speed downstream a = 12kmph
Speed upstream b = 8 kmph
Speed of the stream =

1

2

(a - b) =

1

2

(12 - 8)
=

4

2

= 2 kmph
Speed of the stream = 2kmph