The number of $2, $10 and $50 notes in a piggy bank is in the ratio of 3 : 2 : 8. The notes are worth $4260 altogether. Find the total number of $10 and $50 notes.
|
$2 |
$10 |
$50 |
Total |
Number |
3 u |
2 u |
8 u |
|
Value |
$2 |
$10 |
$50 |
|
Total value |
6 u |
20 u |
400 u |
$4260 |
Total value of $2, $10 and $50 notes
= 6 u + 20 u + 400 u
= 426 u
426 u = 4260
1 u = 4260 ÷ 426 = 10
Number of $10 and $50 notes
= 2 u + 8 u
= 10 u
= 10 x 10
= 100
Answer(s): 100