Question 370353
let speed of fish in still water be x 
let speed of current be y m/s
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x+y =14
x-y =6
add the equations
2x=20
/2
x= 10 m/s
y = 4m/s
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m.ananth@hotmail.ca
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let the numerator be x
denominator be y
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(x-1)/(y-1) =2/3
3(x-1)=2(y-1)
3x-3=2y-2
3x-2y =1.................1
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(x+1)/(y+1)=3/4
4(x+1)=3(y+1)
4x+4 = 3y+3
4x-3y=-1................2
multiply equation 1 by -3 & equation (2) by 2
-9x+6y=-3
8x-6y=-2
add i
-x=-5
x=5
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plug value of x in (1)
3*(5)-2y = 1
-2y= -14
/-2
y=7
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Fraction = 5/7
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m.ananth@hotmail.ca