Find the missing series: 3, 12, 27, 48, 75, 108, ?
Correct answer: A. 147
- A. 147
- B. 162
- C. 183
- D. 192
- E. None of these
Explanation
The correct answer is 147. The pattern is, 3 x 12 = 3 3 x 22 = 12 3 x 32 = 27 3 x 42 = 48 3 x 52 = 75 3 x 62 = 108 3 x 72 = 147 147 is the missing number.
This question appeared on the NUMS 2014 paper, which you can sit online with every answer explained.
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Series questions use numbers, letters, symbols or combinations arranged according to a hidden pattern. You may need to identify repeated operations, alternating rules, alphabetical positions, differences, reversals and mixed sequences to find a missing term or predict the next one.
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