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Maths Puzzle
Numerical Ability
Rita rows 12 km upstream and 12 km downstream in 3 hours. The speed of her boat in still water is 9 km/hr. Find the speed of the stream.
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book Other Question
Y=Xsquared+4X+3
15. Solve the following system of linear inequalities graphically - including a list of the coordinates for your points
3x - y < 6
x > 1
y < 3