The number of $5, $50 and $100 notes in a piggy bank is in the ratio of 7 : 3 : 6. The notes are worth $5495 altogether. Find the total number of $5 and $50 notes.
| |
$5 |
$50 |
$100 |
Total |
| Number |
7 u |
3 u |
6 u |
|
| Value |
$5 |
$50 |
$100 |
|
| Total value |
35 u |
150 u |
600 u |
$5495 |
Total value of $5, $50 and $100 notes
= 35 u + 150 u + 600 u
= 785 u
785 u = 5495
1 u = 5495 ÷ 785 = 7
Number of $5 and $50 notes
= 7 u + 3 u
= 10 u
= 10 x 7
= 70
Answer(s): 70
