Question 45

Select the correct option that will complete the series.
7, 25, 79, 241, _____

Solution

$$7\times3+4 = 21+4 = 25$$

$$25\times3+4 = 75+4 = 79$$

$$79\times3+4 = 237+4 = 241$$

$$241\times3+4 = 723+4 = 727$$

Hence 727 will come in place of blank.

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