Question
Y, Z, A, B, C and D are 2-digit numbers. If Y is 20, Z is the third multiple of Y, A is the seventh multiple of 10, B is the volume of a cube with length of 4 units, and D is the 2nd multiple of 12, C is the first 2-digit of the 4-digit number. What is C?


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Y, Z, A, B, C and D are 2-digit numbers. If Y is 20, Z is the third multiple of Y, A is the seventh multiple of 10, B is the volume of a cube with length of 4 units, and D is the 2nd multiple of 12, C is the first 2-digit of the 4-digit number. What is C?