Jean had a total of 27 pieces of $50 and $2 notes at first. She spent
35 of the number of $50 notes and received another 8 pieces of $2 notes from her mother. After that, the number of $2 notes she had was
12 of the remaining notes. How much money did Jean have at first?
|
$50 |
$2 |
Total |
Before |
5 u |
2 u - 8 |
27 |
Change |
- 3 u |
+ 8 |
|
After |
2 u |
|
|
Comparing $50-notes and $2-notes |
1x2 = 2 u |
1x2 = 2 u |
|
The number of $50-notes and $2-notes in the end is the same.
The number of $50-notes in the end is repeated. Make the number of $50-notes in the end the same. LCM of 1 and 2 is 2.
Number of notes at first
= 5 u + 2 u - 8
= 7 u - 8
7 u - 8 = 27
7 u = 27 + 8
7 u = 35
1 u = 35 ÷ 7 = 5
Number of $50-notes at first
= 5 u
= 5 x 5
= 25
Total value of $50-notes at first
= 25 x 50
= $1250
Number of $2-notes at first
= 2 u - 8
= 2 x 5 - 8
= 10 - 8
= 2
Total value of $2-notes at first
= 2 x 2
= $4
Amount that Jean had at first
= 1250 + 4
= $1254
Answer(s): $1254