Math, asked by suraj295, 1 year ago

a Boat covers 32 km upstream and 36 km downstream in 7 hours also it cover 40 kilometre upstream and 48 km downstream in 9 hours find the Stream speed of boat in still water and that of the stream

Answers

Answered by kartzy

Upstream=x-y
Time =
$\frac{distace}{speed }$
Case 1 =
$\frac{32}{x - y}$
Downstream = x +y
$\frac{36}{x + y}$
$\frac{32}{x - y} + \frac{36}{x + y } = 7$
Equation 1

Create equation 2 similarly

kartzy: speed can not be in negative

kartzy: so 5

vaaaaniiii: yeah even i thought of the same thing but whatever i do, i get the speed of the stream (i.e y=(-6) :(

vaaaaniiii: or wait you do it using quadratic equation or linear equations in 2 variable as pairs?

kartzy: liner equation

kartzy: if any problem open chapter 3 of ncert sweetie

vaaaaniiii: okok thanks ;)

kartzy: welcome darling

kartzy: can you create other equation or should i xrate6

kartzy: create

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