Directions: In the following question, a number sequence is given with one term missing. Choose the correct term that will continue the same pattern and replace the question mark in the given sequence.198,194,185,169,?
Correct answer: D. 144
- A. 92
- B. 112
- C. 136
- D. 144
Explanation
To solve this sequence, observe the differences between consecutive numbers: 198, 194, 185, 169. The differences are -4, -9, -16, which are perfect squares of 2, 3, and 4. Continuing this pattern, the next difference should be 5², which is 25. Subtracting 25 from 169 gives 144.Therefore, the missing term is 144. Options 92, 112, and 136 do not match the pattern of perfect square differences and thus are incorrect.
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About Letter, Symbol and Number Series
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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