Number-series-examplequestions-15

 

 

 

Number series are central to all bank exams

 Example questions

with answers and detailed explanations.

 

Select the number that can replace the question mark (?)

 in the following series.

3, 3, 9, 45,  315,  ?

 A) 945    B) 1050   C) 2835  D) 2205

 

Corect answer is C

EXPLANATION

 

3X1=3

3X3=9

9X5=45

45X7=315

We observe that the numbers by which they are multiplied are
1,3,5,7
It is an arithmetic progression with difference  2 

The next term is 7+2=9

So the missing number in the given series is:

315  x 9=2835

Correct answer is C

 

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