In following question, a number series is given with one term missing. Choose the correct alternative that will same pattern and fill in the blank spaces.
5, 6, 7, 8, 10, 11, 14,
A
15
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B
16
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C
17
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D
18
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Solution
The correct option is A 15 The given sequence is a combination of two series : I. 5, 7, 10, 14 and II. 6, 8, 11, (....) The pattern in both I and II is + 2, + 3, + 4,.... ∴ Missing number = 11 + 4 = 15.