SAT Math Practice Question #24184 - SATify | SATify

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SAT Math Practice Question #24184 - SATify | SATify

#24184

algebra

number theory

hard

120 sec

Let the letters $A, B, C, D$ represent distinct digits. Suppose $A B A B$ is the GREATEST number that satisfies the equation $4 \cdot A B A B = C D C D$ . What is the value of $A + B + C + D$ ?

A.

18

B.

19

C.

20

D.

21

E.

22