Variable Vault – Level 1 – Hard

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Home » Variable Vault – Level 1 – Hard

Four lettered dials (A, B, C, D) unlock a vault. Each dial must be set to the correct number based on the clues below. Solve all clues to find the code: the 4-digit number ABCD.

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Clues:

A = 2(C – 1)
B = A – D
C = (B + D + 2) ÷ 2
A + B + C + D = 21
A is an even number greater than 4.
C – 2 = D – 2
A = 2B + 2

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