Select the option that is related to the fifth number in the same way as the second number is related to the first number and the fourth number is related to the third number.
68 : 19 :: 76 : 21 :: 164 :?
Answer & explanation
Correct answer: option 3
68 : 19 :: 76 : 21 :: 164 :?
The logic followed here is :
(IInd number - 2) × 4 = Ist number
As
68 : 19
(19 - 2) × 4
= 17 × 4
= 68
and
76 : 21
(21 - 2) × 4
= 19 × 4
= 76
Similarly
164 : ?
(X - 2) × 4 = 164
(X - 2) = 164 ÷4
(X - 2) = 41
X = 41 + 2
X = 43