Roland average 4 jousts on his per journey on his first three journeys. He average 8 jousts per journey on his next 27 journeys. What was his overall average nu

Question

Please help having trouble? 

Answer 1

The average per journey is the total number of jousts divided by the total number of journeys.

Look for a way to find those two numbers.

 

You can calculate the total number of jousts in his first three journeys as
(4)(3) = 12

You can then calculate the jousts in the next 27 journeys as

(8)(27) = 216

 

The total number of jousts is

12+216 = 228

and the total number of trips is

3+27 = 30

 

The overall average is 228/30 = 7.6