Find The Missing Number In The Series

Solved examples set 1 series find missing number.

3 3 3 2 27 9 18. The length of the array is n 1. 4 3 4 2 64 16 48. 122 213 340 509 726 series reasoning and aptitude questions answers for competitive examination and entrance test.

This method uses the technique of the summation formula. 7 3 7 2 343 49 294. Find the missing number in the series. Take a look at this series.

As only 23 and 25 are missing from our series they are displayed. Each number is twice the previous one with 1 added or subtracted alternatively. 6 3 6 2 216 36 180. Find the missing numbers in the series 1 4 7 7 8 10 9.

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Insert the missing number. So the sum of all n elements i e sum of numbers from 1 to n can be calculated using the formula n n 1 2 now find the sum of all the elements in the array and subtract it from the sum of first n natural numbers it will be the value of the missing element. 2 3 2 2 8 4 4. Missng number 210 6 6 15 210 126 336.

Therefore the number line series will be 5 7 11 13 17 19. The difference between consecutive numbers of the given series are respectively 5 7 9 11 13 and 15. This is because all the given orders of numbers in a number line contain the prime numbers 5 7 11 13 17 19 which are all divisible by only 1 and itself. But don t worry kutools for excel s powerful feature find missing sequence number can help you quickly identify the missing sequence.

Answer options 6 3 11 13 3 13 6 13. Copy the formula in cell c1 to the entire column to see the missing values in the series. Therefore 24 11 35 but in your problem it is given as 34 so 34 is wrong number. 5 3 5 2 125 25 100.