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 : ?
Answer & explanation
Correct answer: option 4
The logic here is: x : x × (x - 3)
13 : 130 ⇒ 13 : 13 × (13 - 3) ⇒ 13 : 13 × 10 ⇒ 13 : 130
same as
15 : 180 ⇒ 15 : 15 × (15 - 3) ⇒ 15 : 15 × 12 ⇒ 15 : 180
Similarly ,
27 : ? ⇒ 27 : 27 × (27 - 3) ⇒ 27 : 27 × 24 ⇒ 27 : 648
648 is correct answer .