Sheet # 46 Critical Thinking
Name: _____________________ Date_____________
Show and explain your work. Draw pictures or make tables to explain your answer.
Bob's bicycle shop had 48 water bottles for sale.
On Saturday, Bob marked the water bottles down to $5 each and sold 1/2 of them.
On Sunday, he marked down the remaining bottles down to $4 and sold 1/2 of the remaining bottles.
On Monday, he marked the bottles down to $3 and sold 1/3 of the remaining bottles.
On Tuesday, he marked down the bottles he had left down to $2 and sold all of them.
If Bob purchased the bottles for $3 each, how much did he gain or lose? What was the average selling price of a bottle?
Day
Bottles sold
Bottles remaining
Money earned
Saturday
(1/2) x 48 = 24
24
24 x $5 = $120
Sunday
(1/2) x 24 = 12
12
12 x $4 = $48
Monday
(1/3) x 12 = 4
8
4 x $3 = $12
Tuesday
8
8 x $2 = $16
Total = $196
Money spent on buying 48 bottles: 48 x $3 = $144
Bob made $196 - $144 = $52
Average selling price of a bottle = $196/48 = $4.08