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Question
13, 16, 22, 33, 51, (?)
13, 16, 22, 33, 51, (?)
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Solution
The correct option is B 78
The pattern of the number of series is
13 + (2) + (1) = 16
16 + (2 + 1) + (3) = 22
22 + (2 + 1 + 3) + (5) = 33
33 + (2 + 1 + 3 + 5) + (7) = 51
51 + (2 + 1 + 3 + 5 + 7) + (9) = 78
78
The pattern of the number of series is
13 + (2) + (1) = 16
16 + (2 + 1) + (3) = 22
22 + (2 + 1 + 3) + (5) = 33
33 + (2 + 1 + 3 + 5) + (7) = 51
51 + (2 + 1 + 3 + 5 + 7) + (9) = 78
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