Question : Directions: Study the given pattern carefully and select the number that can replace the question mark (?) in it.
| 7 | 14 | 144 |
| 11 | 16 | 234 |
| 12 | ? | 266 |
Option 1: 17
Option 2: 18
Option 3: 19
Option 4: 20
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Correct Answer: 17
Solution :
Add two to both the first and the second numbers and multiply the resultants –
Row I:
(7 + 2) × (14 + 2) = 9 × 16 = 144
Row II:
(11 + 2) × (16 + 2) = 13 × 18 = 234
Similarly, in
Row III:
(12 + 2) × (X + 2) = 266
⇒ 14 × (X + 2) = 266
⇒ X + 2 = 266 ÷ 14
⇒ X = 19 – 2
⇒ X = 17
So, the missing number is 17. Hence, the first option is correct.
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