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Question
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.
1, 6, 15, , 45, 66, 91
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.
1, 6, 15, , 45, 66, 91
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Solution
The correct option is D 28
The pattern is + 5, + 9, ..., + 21, + 25
∴ Missing Number = 15 + 13 = 28.
The pattern is + 5, + 9, ..., + 21, + 25
∴ Missing Number = 15 + 13 = 28.
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