Winnie spent
35 of her money on 4 rulers and 8 staplers. The cost of one stapler was four times the cost of one ruler. She bought some more staplers with
16 of her remaining money. How many staplers did Winnie buy altogether?
4 rulers and
8 staplers |
Remaining amount |
| 3x3 |
2x3 |
| |
More staplers |
Left |
| |
1x1 |
5x1 |
| 9 p |
1 p |
5 p |
Cost of 1 ruler = 1 u
Cost of 1 stapler = 4 u
Cost of 4 rulers = 4 x 1 u = 4 u
Cost of 8 staplers = 8 x 4 u = 32 u
Total cost of 4 rulers and 8 staplers
= 4 u + 32 u
= 36 u
9 p = 36 u
1 p = 36 ÷ 9 = 4 u
Amount that Winnie used to buy more staplers
= 1 p
= 1 x 4 u
= 4 u
Number of more staplers that Winnie bought
= 4 u ÷ 4 u
= 1
Total number of staplers that Winnie bought
= 8 + 1
= 9
Answer(s): 9
