Question

4+5+4=39 3+4+3=30. 2+3+2=21. 1+2+1=?

Answer 1

Answer:

12

Step-by-step explanation:

In all equations, 3 times the sum of addition of LHS is equal to RHS,

$(4 + 5 + 4) \times 3 = 13 \times 3 = 39 \\ (3 +4 + 3) \times 3 = 10 \times 3 = 30 \\ (2 + 3 + 2) \times 3 = 07 \times 3 = 21 \\ as \: same \\ (1 + 2 + 1) \times 3 = 4 \times 3 = 12$

Hence 12 is correct answer....

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