Question

can u answer the 12th question....​

Answer 1

Step-by-step explanation:

Downstrem,

2 Hours go 20 km

1 H go 10 km.

This is speed of downstream

Again Upstream

2 H go 4 km

1 ho go 2 km

Spped of stream = 10-2/2

=4

Speed of Boat in Still water=10-4=6

Answer 2

heya see the pic below for solution.

hope it helps you

kindly mark it brainliest.