The number of $5, $50 and $100 notes in a piggy bank is in the ratio of 1 : 8 : 8. The notes are worth $7230 altogether. Find the total number of $50 and $100 notes.
|
$5 |
$50 |
$100 |
Total |
Number |
1 u |
8 u |
8 u |
|
Value |
$5 |
$50 |
$100 |
|
Total value |
5 u |
400 u |
800 u |
$7230 |
Total value of $5, $50 and $100 notes
= 5 u + 400 u + 800 u
= 1205 u
1205 u = 7230
1 u = 7230 ÷ 1205 = 6
Number of $50 and $100 notes
= 8 u + 8 u
= 16 u
= 16 x 6
= 96
Answer(s): 96