Select the option that is related to the third term in the same way as the second term is related to the first term and the sixth term is related to the fifth term.
21 : 40 :: 16 : ? :: 26 : 50
Answer & explanation
Correct answer: option 3
21 : 40 :: 16 : ? :: 26 : 50
The logic followed here is :
(Ist term - 1) × 2 = IInd term
as
(21 - 1) × 2
= 20 × 2
= 40
and
26 : 50
= (26 - 1) × 2
= 25 × 2
= 50
Similarly
16 : ?
(16 - 1) × 2
= 15 × 2
= 30