Study the given pattern carefully and select the number that can replace the question mark (?) in it.
| 6 | 4 | 6 |
| 18 | 9 | 13 |
| 8 | 6 | ? |
(NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E.g. 13-Operations on 13 such as adding/subtracting/multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. 6.
The logic followed here is: 1st number - 2nd number + 4 = 3rd number
(6, 4, 6) → 6 - 4 = 2 + 4 = 6
(18, 9, 13) → 18 - 9 = 9 + 4 = 13
(8, 6, ?) → 8 - 6 = 2 + 4 = 6