12,32,72,152 _
Correct answer: A. 312
- A. 312
- B. 325
- C. 515
- D. 613
Explanation
12+20=32 32+40=72 72+80=152 so 160 should be added in 152 152+160=312
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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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