Question

If 2 @ 3 = 13 , 12 @ 5 = 39 , 10 @ 7 = 41 find 15 @ 20 .

70

100

105

90
PLEASE ANSWER ITS URGENT .....

Answer 1

Answer:

2 = 6 → 2 x 3 = 6

3 = 12 → 3 x 4 = 12

4 = 20 → 4 x 5 = 20

5 = 30 → 5 x 6 = 30

6 = 42 → 6 x 7 = 42

therefore:

7 = 56 → 7 x 8 = 56

8 = 72 → 8 x 9 = 72

9 = 90 → 9 x 10 = 90 is the final solution