Question

Complete the next number in the given number series? 21 56 102 160 231 316

Answer 1

Answer: 416
Explanation

: The given number series is  21 56 102 160 231 316  
21      56       102        160      231       316         416  
 +35    +46       +58       +71      +85       +100        
+11      +12       +13      +14      +15  

Hence, the next number in the given number series is 316 + 100 = 416.

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Answer 2

the next number in the given number series 21 56 102 160 231 316..... 416..
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