Irene spent
25 of her money on 8 pens and 6 glues. The cost of one glue was four times the cost of one pen. She bought some more glues with
16 of her remaining money. How many glues did Irene buy altogether?
8 pens and
6 glues |
Remaining amount |
| 2x2 |
3x2 |
| |
More glues |
Left |
| |
1x1 |
5x1 |
| 4 p |
1 p |
5 p |
Cost of 1 pen = 1 u
Cost of 1 glue = 4 u
Cost of 8 pens = 8 x 1 u = 8 u
Cost of 6 glues = 6 x 4 u = 24 u
Total cost of 8 pens and 6 glues
= 8 u + 24 u
= 32 u
4 p = 32 u
1 p = 32 ÷ 4 = 8 u
Amount that Irene used to buy more glues
= 1 p
= 1 x 8 u
= 8 u
Number of more glues that Irene bought
= 8 u ÷ 4 u
= 2
Total number of glues that Irene bought
= 6 + 2
= 8
Answer(s): 8
