Question : Directions: In the following question, select the missing number from the given responses.
| 9 | 30 | 21 |
| 6 | ? | 14 |
| 12 | 40 | 28 |
Option 1: 20
Option 2: 33
Option 3: 37
Option 4: 70
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Correct Answer: 20
Solution : Here, the difference between the second column and the first column is equal to the third column.
Like, in the first row; 30 – 9 = 21
And, in the third row; 40 – 12 = 28
Similarly, in the third row; ? – 6 = 14; ? = 20
So, the missing number is 20. Hence, the first option is correct.
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