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CEMC Fermat, 2016 Difficulty 1.0 Junior Find the answer Canada
If x = 3 x=3 x = 3 y = 2 x y=2x y = 2 x z = 3 y z=3y z = 3 y z z z
Pick one
A 8 8 8 B 9 9 9 C 6 6 6 D 18 18 18 E 15 15 15
Solution Since x = 3 x=3 x = 3 y = 2 x y=2x y = 2 x y = 2 ⋅ 3 = 6 y = 2\cdot 3 = 6 y = 2 ⋅ 3 = 6
Since y = 6 y=6 y = 6 z = 3 y z=3y z = 3 y z = 3 ⋅ 6 = 18 z = 3\cdot 6 = 18 z = 3 ⋅ 6 = 18
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