Question
The average number of pens Bobby and Caden had was 115. The average number of pens Bobby and Xavier was 65.5. Given that the ratio of the number of pens Caden had to the number of pens Xavier had was 5 : 2, find the number of pens Bobby had.
4 m

Click button first when a symbol is required. X

The average number of pens Bobby and Caden had was 115. The average number of pens Bobby and Xavier was 65.5. Given that the ratio of the number of pens Caden had to the number of pens Xavier had was 5 : 2, find the number of pens Bobby had.