Question

If
2+4=12
4+6=30
5+2=12
6+3=21
1+9=?

Answer 1

Answer:

18

Step-by-step explanation:

2×4+4=12

4×6+6=30

5×2+2=12

6×3+3=21

so

1×9+9=18

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Answer 2

Answer:

18

Step-by-step explanation:

${\underline{{\text{Given}}}}$

2 + 4 = 12

4 + 6 = 30

5 + 2 = 12

6 + 3 = 21

${\underline{{\text{To Find:}}}}$

1+9 =?

${\underline{{\text{Solution:}}}}$

Analysing the question, I get ....

2 + 4 = (2 × 4) + 4 = 8 + 4 = 12

And so on,

2 + 4 = (2 × 4) + 4 = 8 + 4 = 12

4 + 6 = (4 × 6) + 4 = 24 + 6 = 30

5 + 2= (5 × 2) + 2 = 10 + 2 = 12

6 + 3 = (6 × 3) + 3 = 18 + 3 = 21

Similarly,

1 + 9 = (1 × 9) + 9 = 9 + 9 = 18

Hence, the required answer is 18.