Civil Service Exam Reviewer · Logical Reasoning · hard

Find the missing number: 7 : 52 :: 8 : 67 :: 5 : ?

1. 30
2. 120
3. 24
4. 28

Answer

D. 28

Solution

Rule: each number is paired with n² + 3. Check: 7 → 52 and 8 → 67. So 5 → 28.

More Logical Reasoning questions

1. Find the missing number: 13 : 183 :: 6 : 43 :: 5 : ?
2. Find the missing number: 10 : 1001 :: 13 : 2198 :: 12 : ?
3. Find the missing number: 4 : 21 :: 13 : 183 :: 10 : ?
4. Find the missing number: 14 : 2745 :: 4 : 65 :: 6 : ?
5. Find the missing number: 7 : 344 :: 4 : 65 :: 13 : ?
6. Find the missing number: 8 : 504 :: 6 : 210 :: 5 : ?
7. Find the missing number: 11 : 1332 :: 3 : 28 :: 7 : ?
8. Find the missing number: 5 : 24 :: 3 : 8 :: 8 : ?
9. Find the missing number: 5 : 51 :: 4 : 33 :: 12 : ?
10. Find the missing number: 12 : 169 :: 11 : 144 :: 8 : ?

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