Find the wrong term in the following series 27 25 22 17 10 1 ........

Quantitative Aptitude(IBPS CL) Number series

Find the wrong term in the following series.

27, 25, 22, 17, 10, 1

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IBPS Clerk (Prelims)

- The series given is: 27, 25, 22, 17, 10, 1.

- To find the wrong term, let's identify the pattern.

- Analyze the differences between the terms:

- \(27 - 25 = 2\)

- \(25 - 22 = 3\)

- \(22 - 17 = 5\)

- \(17 - 10 = 7\)

- \(10 - 1 = 9\)

- The differences between the terms are: 2, 3, 5, 7, 9.

- These differences represent consecutive prime numbers.

- Check if the terms should follow a consistent subtraction by consecutive primes:

- The subtraction should be 2, 3, 5, 7, and 11 (next prime).

- Subtracting 11 from 10 should lead to -1, not 1.

- Therefore, Option 5: 1 is the incorrect term.

Correct Answer: Option 5, 1

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