Question

A carnival sold 135 bottles of juice in one day. They sold 1/3 of the bottles in the first hour and 2/5 of the bottles in the second hour. How many bottles of juice did they sell altogether in these two hours?

Answer 1

1/3x135=45 bottles the first hour
135-45=90 bottles left after first hour
2/5x90=36 bottles the second hour
45+36=81 bottles altogether