Wendy spent
25 of her money on 4 post-it pads and 8 glues. The cost of one glue was twice the cost of one post-it pad. She bought some more glues with
15 of her remaining money. How many glues did Wendy buy altogether?
4 post-it pads and
8 glues |
Remaining amount |
| 2x5 |
3x5 |
| |
More glues |
Left |
| |
1x3 |
4x3 |
| 10 p |
3 p |
12 p |
Cost of 1 post-it pad = 1 u
Cost of 1 glue = 2 u
Cost of 4 post-it pads = 4 x 1 u = 4 u
Cost of 8 glues = 8 x 2 u = 16 u
Total cost of 4 post-it pads and 8 glues
= 4 u + 16 u
= 20 u
10 p = 20 u
1 p = 20 ÷ 10 = 2 u
Amount that Wendy used to buy more glues
= 3 p
= 3 x 2 u
= 6 u
Number of more glues that Wendy bought
= 6 u ÷ 2 u
= 3
Total number of glues that Wendy bought
= 8 + 3
= 11
Answer(s): 11
