Question

2=6 3=12 4=20 5=30 6=42 9=?

Answer 1

2 * 3 = 6.
3 * 4 = 12.
4 * 5 =  20.
5 * 6 = 30.
6 * 7 = 42.
7 * 8 = 56.
8 * 9 = 72.

9 * 10 = 90 .................--Answer..........

Answer 2

Answer:

9=90

Step-by-step explanation:

Observe the pattern of given sequence:

2 = 2×(2+1)=2×3 = 6

3 = 3×(3+1)=3×4 = 12

4 = 4×(4+1)=4×5 = 20

5 = 5×(5+1)=5×6 = 30

6 = 6×(6+1)=6×7 = 42

7 = 7×(7+1)=7×8 = 56

8 = 8×(8+1)=8×9 = 72

Now,

9 = 9×(9+1)=9×10 = 90

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