Find the missing number: 4 6 7 31, 9 8 4 76, 7 4 2 _____?
- 35
- 25
- 30
- None of these
Explanation
Step 1 – Identify the pattern
It seems each number in row D is obtained from the numbers above it in A, B, C.
Check first column:
A1 = 4, B1 = 6, C1 = 7 → D1 = 31
Possible formula:
4×6 = 24, 24 + 7 = 31.
So: A × B + C = D
Step 2 – Verify with second column
A2 = 9, B2 = 8, C2 = 4
9 × 8 = 72, 72 + 4 = 76 ✔ works.
Step 3 – Apply to third column
A3 = 7, B3 = 4, C3 = 2
7 × 4 = 28, 28 + 2 = 30.
So missing number = 30.
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