Complete the following series - 3- 15- 39- 87- - 135- 183- 159-None of these- 151-

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Complete the ...

Question

Complete the following series $3, 15, 39, 87, ?$

135

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151

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159

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183

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None of these

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Solution

The correct option is B $183$
We have, 15 - 3 = 12;
39 - 15 = 24;
87 - 39 = 48
Here, the difference between each of the successive digits get doubled in each of the next number.
So, 48 x 2 = 96.
Therefore, the missing number = 87 + 96 = 183
Hence, option (D) is the correct answer.

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Similar questions

Complete the series given below by choosing the missing term from the given alternatives.

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