Usha spent
37 of her money on 2 files and 8 punchers. The cost of one puncher was twice the cost of one file. She bought some more punchers with
13 of her remaining money. How many punchers did Usha buy altogether?
2 files and
8 punchers |
Remaining amount |
| 3x3 |
4x3 |
| |
More punchers |
Left |
| |
1x4 |
2x4 |
| 9 p |
4 p |
8 p |
Cost of 1 file = 1 u
Cost of 1 puncher = 2 u
Cost of 2 files = 2 x 1 u = 2 u
Cost of 8 punchers = 8 x 2 u = 16 u
Total cost of 2 files and 8 punchers
= 2 u + 16 u
= 18 u
9 p = 18 u
1 p = 18 ÷ 9 = 2 u
Amount that Usha used to buy more punchers
= 4 p
= 4 x 2 u
= 8 u
Number of more punchers that Usha bought
= 8 u ÷ 2 u
= 4
Total number of punchers that Usha bought
= 8 + 4
= 12
Answer(s): 12
