The number of $2, $50 and $100 notes in a piggy bank is in the ratio of 4 : 8 : 3. The notes are worth $6372 altogether. Find the total number of $50 and $100 notes.
| |
$2 |
$50 |
$100 |
Total |
| Number |
4 u |
8 u |
3 u |
|
| Value |
$2 |
$50 |
$100 |
|
| Total value |
8 u |
400 u |
300 u |
$6372 |
Total value of $2, $50 and $100 notes
= 8 u + 400 u + 300 u
= 708 u
708 u = 6372
1 u = 6372 ÷ 708 = 9
Number of $50 and $100 notes
= 8 u + 3 u
= 11 u
= 11 x 9
= 99
Answer(s): 99
