Question : Directions: Select the missing number from the given responses.
| 23 | ? | 12 |
| 6 | 13 | 7 |
| 138 | 117 | 84 |
Option 1: 9
Option 2: 13
Option 3: 17
Option 4: 15
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Correct Answer: 9
Solution : Given:
| 23 | ? | 12 |
| 6 | 13 | 7 |
| 138 | 117 | 84 |
In each column multiply the first two numbers to obtain the third number.
Column 1:
23 × 6 = 138
Column 2:
(?) × 13 = 117
⇒ (?) = 117 ÷ 13
⇒ (?) = 9
Column 3:
12 × 7 = 84
So, 9 is the missing number. Hence, the first option is correct.
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