what is the next number in the following series 1, 3,8,19 ?40414238
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Answer:39
Step-by-step explanation:The difference b/w 1 and 3 is 2, b/w 3 and 8 is 5 b/w 8 and 19 is 11. The difference is increasing by 3 in the first step and by 6 in the second step. So the difference in the next step would be 9. 11+9=20. So ans will be 19+20 =39
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