Complete the series : ,2,6,15,40,145,--
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Answer:
157.5
Step-by-step explanation:
The following pattern is used in the following series
2 x 1 = 2
2 x 1.5 = 3
3 x 2 = 6
6 x 2.5 = 15
15 x 3 = 45
45 x 3.5 = 157.5
Every previous result is multiplied by a number which gets increased by 0.5 in every next step!
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