Question

A boat takes 5 hr to travel 54 km downstream and 24 km upstream. It takes 6 hrs to travel 36 km downstream and 48 km upstream . Find the speed of boat in water and speed of stream.
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Answer 1

Answer:

look in side your heart and you find therite one

Step-by-step explanation:

Answer 2

Downstream speed $=(B+S)km/h$

Where $B=$Speed of boat

$S=$ speed of stream

Upstream speed $=(B-S)km/h$

ATQ,

$\frac{54}{B+S}+\frac{24}{B-S}=5...(1)\\ \frac{36}{B+S}+\frac{48}{B-S}=6...(2)$

Solve eq. (1) and (2)

we get $B+S=3$

$B-S=2$

So,

$B=2.5km/h$

$S=0.5km/h$