Question : Directions: In the following question, Select the number that can be placed at the sign of the question mark (?) from the given alternatives.
| 1 | 2 | 3 | 4 |
| 2 | 3 | 4 | 5 |
| 3 | 4 | 5 | 6 |
| 6 | 9 | 12 | ? |
Option 1: 14
Option 2: 15
Option 3: 17
Option 4: 20
Correct Answer: 15
Solution : The pattern followed is that the fourth row is the sum of the other three rows –
Like, in the first column→1 + 2 + 3 = 6
And, in the second column→2 + 3 + 4 = 9
And, in the third column→3 + 4 + 5 = 12
Similarly, in the fourth column→4 + 5 + 6 = 15
So, 15 is the missing number. Hence, the second option is correct.
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