Find the series of this number 3, 11, 25, 45?

Answer: The series is 3,11,25,45, 71.

Given

Series 3,11,25,45, ?

To find

The missing term in the series?

Solution

Let us consider the missing term be y

To find the value of y let us understand the pattern between the numbers.

11 – 3 = 8

25 – 11 = 14

45 – 25 = 20

If we compare the numbers 8, 14, 20 the difference between the numbers is six.

Every number result is raised by 6.

So

y – 45 = 20 + 6

y – 45 = 26

y = 26 + 45

y = 71

∴ the series is 3,11,25,45, 71.

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