Question
Cathy, Oscar and Bobby have a total of 195 erasers. Cathy and Bobby have a total of 158 erasers while Oscar and Bobby have a total of 117 erasers. How many more erasers does Bobby have than Cathy?
4 m

Click button first when a symbol is required. X

Cathy, Oscar and Bobby have a total of 195 erasers. Cathy and Bobby have a total of 158 erasers while Oscar and Bobby have a total of 117 erasers. How many more erasers does Bobby have than Cathy?