Complete the missing number: 9 (45) 81, 8 (36) 64, 10 (_____) (_____)?
- 25
- 40, 100
- 90, 20
- None of these
Explanation
First and Third Numbers:
9² = 81
8² = 64
So for 10: 10² = 100 → third number is 100
Now the middle number:
9 × 5 = 45
8 × 4.5 = 36
Seems like:
Middle number = First number × 5 (for 9), and × 4.5 (for 8)
Let’s check the pattern:
9 → ×5 = 45
8 → ×4.5 = 36
So 10 → ×4 = 40
Final Set:
10 (40) (100)
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