The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number pairs, EXCEPT one. Find that odd number pair.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. (5,430).
Logic: Second number = [(First number)3 × (First number + 1)]
Checking all the given options:
Option 1. (2, 24) ⇒ [(2)3 × (2 + 1)] ⇒ (8 × 3) = 24
Option 2. (4, 320) ⇒ [(4)3 × (4 + 1)] ⇒ (64 × 5) = 320
Option 3. (5, 430) ⇒ [(5)3 × (5 + 1)] ⇒ (125 × 6) = 750
Option 4. (3, 108) ⇒ [(3)3 × (3 + 1)] ⇒ (27 × 4) = 108
Hence, the correct answer is (5,430).