Question
Download Solution PDFHow many prime numbers exist between 20 and 60 and what is the average of these prime numbers?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFPrime numbers are natural numbers greater than 1 that have only two factors: 1 and the number itself. The prime numbers between 20 and 60 are: 23, 29, 31, 37, 41, 43, 47, 53, 59.
So there are 9 prime numbers.
To calculate the average, we sum these numbers up and divide by the count:
(23 + 29 + 31 + 37 + 41 + 43 + 47 + 53 + 59) / 9 = 363 / 9 = 40.33
Therefore, the answer is (2) 9, 40.33.
Last updated on Jun 12, 2025
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