The speed of a boat is 12 km/h in still water. It goes 18 km

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The speed of a boat is 12 km/h in still water. It goes 18 km downstream and comes back in a total time of hours. Find the speed of the stream (in km/h).

[SSC CHSL 26th May 2022 Shift-1 With Answers]

A

6

B

7

C

8

D

9

EXPLANATION

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