Question : Directions: Select the number from among the given options that can replace the question mark (?) in the following series. 121, 144, 169, ?, 225, 256
Option 1: 196
Option 2: 192
Option 3: 188
Option 4: 194
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Correct Answer: 196
Solution : Given: 121, 144, 169, ?, 225, 256
The series consists of the squares of consecutive numbers starting from 11. (11) 2 = 121; (12) 2 = 144; (13) 2 = 169; (14) 2 = 196; (15) 2 = 225; (16) 2 = 256
So, the missing number is 196. Hence, the first option is correct.
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