Usha had an equal number of $50 and $5 notes. After spending 33 pieces of $5 and 11 pieces of $50 notes, the ratio of the $50 notes to $5 notes left was 7 : 5. Find the value of the notes left.
|
$50 |
$5 |
Before |
7 u + 11 |
5 u + 33 |
Change |
- 11 |
- 33 |
After |
7 u |
5 u |
Number of $50 notes at first = 7 u + 11
Number of $5 notes at first = 5 u + 33
The number of $50 and $5 notes at first is the same.
7 u + 11 = 5 u + 33
7 u - 5 u = 33 - 11
2 u = 22
1 u = 22 ÷ 2 = 11
Value of $50-notes left
= 7 u x 50
= 7 x 11 x 50
= $3850
Value of $5-notes left
= 5 u x 5
= 5 x 11 x 5
= $275
Value of notes left
= 3850 + 275
= $4125
Answer(s): $4125