In each of the following questions, a series is given, with
one term missing. Choose the correct alternative from the given ones that will complete the series.
Let the missing number is y
here the given pattern is 121, 222, 424, y
the hidden pattern here is that in every successive number the unit and ten's digit place is getting doubled compared to previous one and the middle term is remaining same in every case which is equal to 2
hence , y = 828
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