The number of $2, $50 and $100 notes in a piggy bank is in the ratio of 9 : 8 : 5. The notes are worth $4590 altogether. Find the total number of $2 and $50 notes.
| |
$2 |
$50 |
$100 |
Total |
| Number |
9 u |
8 u |
5 u |
|
| Value |
$2 |
$50 |
$100 |
|
| Total value |
18 u |
400 u |
500 u |
$4590 |
Total value of $2, $50 and $100 notes
= 18 u + 400 u + 500 u
= 918 u
918 u = 4590
1 u = 4590 ÷ 918 = 5
Number of $2 and $50 notes
= 9 u + 8 u
= 17 u
= 17 x 5
= 85
Answer(s): 85
