Question:
Find the missing number:
4 → 20
5 → 30
6 → 42
7 → ?
लुप्त संख्या ज्ञात कीजिए:
4 → 20
5 → 30
6 → 42
7 → ?
Options:
- 48
- 54
- 56
- 63
- 48
- 54
- 56
- 63
Correct Answer: c)
Explanation:
Pattern: n → n × (n + 1)
4 × 5 = 20
5 × 6 = 30
6 × 7 = 42
7 × 8 = 56
पैटर्न: संख्या × (संख्या + 1)
4 × 5 = 20
5 × 6 = 30
6 × 7 = 42
7 × 8 = 56