| Direction: Select the missing number from the given responses. |
| 1 | 7 | 9 |
| 2 | 14 | ? |
| 3 | 105 | 117 |
A) 26
B) 20
C) 16
D) 12
Correct Answer: D
Solution :
In the first column, \[2\times 1+1=3,\] in the second column, \[14\times 7+7=105,\] Let the missing number in the third column be x. Then, \[x\times 9+9=117\] \[\Leftrightarrow \] \[9x=108\] \[\Leftrightarrow \] \[x=12\]
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