Correct option is A
Given,
98 : 7 : : 162 : 9 : : 242 : ?
In this question following pattern is followed-
(2nd)2 × 2 = 1st Number
98 : 7 → 72 × 2 = 49 × 2 = 98
162 : 9 → 92 × 2 = 81 × 2 = 162
Similarly,
242 : ? → ?2 × 2 = 242
?2 = 242 ÷ 2
?2 = 121
? = 11
Therefore, the correct answer is (a).