The number of $2, $20 and $50 notes in a piggy bank is in the ratio of 1 : 6 : 8. The notes are worth $4698 altogether. Find the total number of $2 and $20 notes.
| |
$2 |
$20 |
$50 |
Total |
| Number |
1 u |
6 u |
8 u |
|
| Value |
$2 |
$20 |
$50 |
|
| Total value |
2 u |
120 u |
400 u |
$4698 |
Total value of $2, $20 and $50 notes
= 2 u + 120 u + 400 u
= 522 u
522 u = 4698
1 u = 4698 ÷ 522 = 9
Number of $2 and $20 notes
= 1 u + 6 u
= 7 u
= 7 x 9
= 63
Answer(s): 63
