Raeann spent
34 of her money on 12 pens and 6 files. The cost of each file is 2 times the cost of each pen. She bought some more pens with
34 of her remaining money. How many pens did Raeann buy altogether?
12 pens + 6 files |
Remaining amount |
Total amount |
3 p = 24 u |
1 p = 8 u |
4 p |
12 pens |
6 files |
More pens |
Left |
|
|
|
3 |
1 |
|
12 u |
12 u |
6 u |
|
|
Cost of 1 pen = 1 u
Cost of 1 file = 2 u
Cost of 12 pens = 12 x 1 u = 12 u
Cost of 6 files = 6 x 2 u = 12 u
Cost of 12 pens + 6 files
= 12 u + 12 u
= 24 u
3 p = 24 u
1 p = 24 u ÷ 3 = 8 u
Amount of remaining money that Raeann spent on buying more pens
=
34 x 8 u
= 6 u
Number of pens that Raeann bought with
34 of her remaining money
= 6 u ÷ 1 u
= 6
Total number of pens that Raeann bought
= 12 + 6
= 18
Answer(s): 18