Question 27

Select the number from among the given options that can replace the question mark (?) in the following series.
121, 144, 169, ?, 225, 256

Solution

Here the square of consecutive numbers from 11 is done.

$$11^2\ =\ 121$$

$$12^2\ =\ 144$$

$$13^2\ =\ 169$$

$$14^2\ =\ 196$$

$$15^2\ =\ 225$$

$$16^2\ =\ 256$$

Hence 196 will come in place of the question mark.

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Select the number from among the given options that can replace the question mark (?) in the following series.121, 144, 169, ?, 225, 256