Cagney can frost a cupcake every 20 seconds and Lacey can frost a cupcake every 30 seconds. Working together, how many cupcakes can they frost in 5 minutes?
Answer Choices
A. 10
B. 15
C. 20
D. 25
E. 30
Cagney can frost a cupcake every 20 seconds and Lacey can frost a cupcake every 30 seconds. Working together, how many cupcakes can they frost in 5 minutes?
Answer Choices
A. 10
B. 15
C. 20
D. 25
E. 30