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Multiple choice

The average of X, Y, Z is 24, (X : Y = 2 : 3), (X + Y = 60), then find (X – Z = ?)

  1. 32

  2. 24

  3. 16

  4. 12

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Average of X,Y,Z = 24 means X+Y+Z = 72. Given X:Y = 2:3 and X+Y = 60, solving gives X = 24, Y = 36. Then Z = 72 - 60 = 12. So X - Z = 24 - 12 = 12.

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