The number of $2, $5 and $50 notes in a piggy bank is in the ratio of 3 : 7 : 8. The notes are worth $4410 altogether. Find the total number of $5 and $50 notes.
|
$2 |
$5 |
$50 |
Total |
Number |
3 u |
7 u |
8 u |
|
Value |
$2 |
$5 |
$50 |
|
Total value |
6 u |
35 u |
400 u |
$4410 |
Total value of $2, $5 and $50 notes
= 6 u + 35 u + 400 u
= 441 u
441 u = 4410
1 u = 4410 ÷ 441 = 10
Number of $5 and $50 notes
= 7 u + 8 u
= 15 u
= 15 x 10
= 150
Answer(s): 150