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find the missing number 8-4-9 14-5-2 18-1-blank?
2
The number progression is n+prime numbers progressively increasing starting from 2. The missing number is 29.
No. That's most of the factors of 18, missing three and six.
Given the average,find the missing numbr in a set by following these steps: 1.Multiply the average by the number of items in the set. 2.Add the given numbers ni the set. 3.Find the difference of the product in step 1 and step2.