Question 22
A café orders 20 packs of coffee beans each week. Every week, half of the coffee beans in stock are sold. At the end of the 10th week, 20 packs remain. How many packs were at the café at the start of the 1st week?
Interpret each week as receiving the 20 new packs before selling half. “At the start of the 1st week” means before that week’s delivery.
Interpret each week as receiving the 20 new packs before selling half. “At the start of the 1st week” means before that week’s delivery.