Select the option that is related to the fifth term in the same way as the second term is related to the first term and fourth term related to third term. 13 : 130 :: 15 : 180 :: 27 : ? |
649 658 650 648 |
648 |
The logic here is: x : x × (x - 3) same as 15 : 180 ⇒ 15 : 15 × (15 - 3) ⇒ 15 : 15 × 12 ⇒ 15 : 180 27 : ? ⇒ 27 : 27 × (27 - 3) ⇒ 27 : 27 × 24 ⇒ 27 : 648 648 is correct answer . |