Question

What will come in place of the question mark (?) in the following series?

18      19       28       53      102      ?

A 185 Correct Answer Incorrect Answer
B 186 Correct Answer Incorrect Answer
C 183 Correct Answer Incorrect Answer
D 184 Correct Answer Incorrect Answer
E None of these Correct Answer Incorrect Answer

Solution

18 + 12 = 19 19 + 32 = 28 28 + 52 = 53 53 + 72 = 102 102 + 92 =  183

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