The number of $2, $5 and $100 notes in a piggy bank is in the ratio of 1 : 7 : 5. The notes are worth $4296 altogether. Find the total number of $5 and $100 notes.
| |
$2 |
$5 |
$100 |
Total |
| Number |
1 u |
7 u |
5 u |
|
| Value |
$2 |
$5 |
$100 |
|
| Total value |
2 u |
35 u |
500 u |
$4296 |
Total value of $2, $5 and $100 notes
= 2 u + 35 u + 500 u
= 537 u
537 u = 4296
1 u = 4296 ÷ 537 = 8
Number of $5 and $100 notes
= 7 u + 5 u
= 12 u
= 12 x 8
= 96
Answer(s): 96
