exam Maths Puzzle Numerical Ability

3x-y=-7
x+y= -9

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exam Other Question

A landscaper wants to enclose a 90ft by 120ft rectangle with a walk of uniform width. He wants to use a supply of crushed rock that will cover 1744 square feet of walk. How wide should he make the walk? 3) In decomposing 8x-1 / (x+1)(x-2) one of the fractions obtained is:

a) 1 / x+1

b) 1 / x-2

c) 5 / x+1

d) 3 / x+1

e) 3 / x-2