The Average of First Five Prime Numbers is GMAT Problem Solving

Question: The average of first five prime numbers is:

  1. 5.1
  2. 5.3
  3. 5.5
  4. 5.6
  5. 5.7

Approach Solution 1

The first five prime numbers are: 2, 3, 5, 7, 11.
Mean= sum of observation / number of observations
= 2+3+5+7+11/5
= 28/5
= 5.6
Thus, the mean of the first five prime numbers is 5.6.

Approach Solution 2

First 5 primes = 2,3,5,7,11.
Clearly avg= (2+3+5+7+11)/5
= 28/5
= 5.6

Approach Solution 3

First five prime numbers= (2,3,5,7,11)
Sum of the first five prime numbers= 2+3+5+7+11
= 28
Average= 28/5
= 5.6

Therefore, the average of the first five numbers is 5.6

“The average of first five prime numbers is:”- is a topic of the GMAT Quantitative reasoning section of GMAT. To solve GMAT Problem Solving questions a student must have knowledge about a good amount of qualitative skills. GMAT Quant practice papers improve the mathematical knowledge of the candidates as it represents multiple sorts of quantitative problems.

Suggested GMAT Problem Solving Samples

Comments


No Comments To Show