MCQ
In the following number series, only one number is wrong. Find out that number:
9, 19, 40, 83, 170, 340
Options
340
170
83
40
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Solution
340
Explanation:
The pattern is as follows:
9 × 2 + 1 = 19
19 × 2 + 2 = 40
40 × 2 + 3 = 83
83 × 2 + 4 = 170
170 × 2 + 5 = 345
Hence, the wrong number in the series is 340.
Concept: Series (Enterance Exam)
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