Question

Mary, Ana, and Nata work at a coffee shop. Each day from Monday to Friday exactly

two of them come to work. Mary works 3 days per week and Ana works 4 days per
week. How many days per week does Nata work?

Answer 1

Explanation:

5 (days) x 2 (people) = 10

Total must add to 10

3(Mary)+4(Ana)=7

10-7=3

therefore Nata works 3 days