The number of $2, $50 and $100 notes in a piggy bank is in the ratio of 4 : 9 : 3. The notes are worth $4548 altogether. Find the total number of $50 and $100 notes.
|
$2 |
$50 |
$100 |
Total |
Number |
4 u |
9 u |
3 u |
|
Value |
$2 |
$50 |
$100 |
|
Total value |
8 u |
450 u |
300 u |
$4548 |
Total value of $2, $50 and $100 notes
= 8 u + 450 u + 300 u
= 758 u
758 u = 4548
1 u = 4548 ÷ 758 = 6
Number of $50 and $100 notes
= 9 u + 3 u
= 12 u
= 12 x 6
= 72
Answer(s): 72