Question 90

Q94Multiple choice

Taking x = ,y = and z = , find : 9 12 18

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(a) the rational number which when added to x gives y.

(b) the rational number which subtracted from y gives z.

(c) the rational number which when added to z gives us x.

(d) the rational number which when multiplied by y to get x. (e) the reciprocal of x + y. (f) the sum of reciprocals of x and y. (g) (x ÷ y) × z (h) (x – y) + z (i) x + (y + z) (j) x ÷ (y ÷ z) (k) x – (y + z) –1