In a bag of notes, the number of $2, $10 and $50 are in ratio of 4 : 3 : 8.
14 of the $2-notes and 15 $10-notes are taken out. The remaining notes are worth $2466. Find the difference between the value of $50-notes and $2-notes in the end.
| |
$2 |
$10 |
$50 |
| Before |
4 u |
3 u |
8 u |
| Change |
- 1 u |
- 15 |
|
| After |
3 u |
3 u - 15 |
8 u |
| |
$2 |
$10 |
$50 |
Total |
| Number |
3 u |
3 u - 15 |
8 u |
|
| Value |
2 |
10 |
50 |
|
| Total value |
6 u |
30 u - 150 |
400 u |
2466 |
Total value of the notes
= 6 u + 30 u - 150 + 400 u
= 436 u - 150
436 u - 150 = 2466
436 u = 2466 + 150
436 u = 2616
1 u = 2616 ÷ 436 = 6
Difference between the value of $50-notes and $2-notes in the end
= 400 u - 6 u
= 394 u
= 394 x 6
= $2364
Answer(s): $2364
