Select the number pair in which the numbers are related in the same way as are the numbers of the given number pairs. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into their constituent digits.) 6 : 31; 8 : 59

Explanation

Logic: Second no. = [(First no.)2 - 5] Given: 6 ∶ 31 → ⇒ [(6)2 - 5] ⇒ (36 - 5) = 31 8 ∶ 59 → ⇒ [(8)2 - 5] ⇒ (64 - 5) = 59 Checking the given options: (1) 7 : 42 → ⇒ [(7)2 - 5] ⇒ (49 - 5) = 44 (2) 9 : 75 → ⇒ [(9)2 - 5] ⇒ (81 - 5) = 76 (3) 25 : 620 → ⇒ [(25)2 - 5] ⇒ (625 - 5) = 620 (4) 12 : 140 → ⇒ [(12)2 - 5] ⇒ (144 - 5) = 139 Here, '25 : 620' is similar to the given number pairs. Hence, the correct answer is "Option (3)".