Find the wrong number in the series given below:
3, 8, 15, 24, 34, 48, 63, ...नीचे दी गई श्रृंखला में गलत संख्या बताइए:
3, 8, 15, 24, 34, 48, 63, ...

1. A34
2. B48
3. C24
4. D63

Pick an option to check yourself, or open the answer below.

Show answer & explanation

Correct answer: A. 34

Explanation

The terms are n² − 1: 2²−1=3, 3²−1=8, 4²−1=15, 5²−1=24, 6²−1=35, 7²−1=48, 8²−1=63. (Differences 5, 7, 9, 11, 13, 15.) So 34 should be 35; the wrong number is 34.पद n² − 1 हैं: 2²−1=3, 3²−1=8, 4²−1=15, 5²−1=24, 6²−1=35, 7²−1=48, 8²−1=63। (अंतर 5, 7, 9, 11, 13, 15)। अतः 34 के स्थान पर 35 होना चाहिए; गलत संख्या 34 है।