Question

.What is the next number?
1,8,5,10,9,12,___​

Answer 1

Answer:

36,72 these are my favorite numbers... hope u like them 2

Answer 2

The next number of 1 , 8 , 5 , 10 , 9 , 12 is 13

Given :

The series 1 , 8 , 5 , 10 , 9 , 12

To find :

The next number

Solution :

Step 1 of 2 :

Write down the given series

The given series is 1 , 8 , 5 , 10 , 9 , 12

Step 2 of 2 :

Find the pattern

The terms in odd position are 1 , 5 , 9

This is an arithmetic series with first term = 1 and common difference = 4

The terms in even position are 8 , 10 , 12

This is an arithmetic series with first term = 8 and common difference = 2

Step 3 of 3 :

Find the next number

The next number

= 7th term of the given series

= 4th term of the series 1 , 5 , 9

= 3rd term + Common Difference

= 9 + 4

= 13

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