# IF 2=0, 3=3, 4=6, 5 = 9 then 7=?

- 16
- 15
- 18
- 12

**Answer: (2) 15**

**Explanation:-
**(2 + 0) = (0 x 3) = 2 = 0 ,

(2 + 1) = (1 x 3) = 3 = 3,

(3 + 1 ) = (2 x 3) = 4 = 6,

(4 + 1) = (3 x 3) = 5 = 9,

(5 + 1) = (4 x 3 ) = 6 = 12,

Same as,

(6 + 1) = (5 x 3) = 7 = 15.

Hence, the answer is (2) 15.