The number of $2, $50 and $100 notes in a piggy bank is in the ratio of 8 : 6 : 7. The notes are worth $5080 altogether. Find the total number of $2 and $50 notes.
|
$2 |
$50 |
$100 |
Total |
Number |
8 u |
6 u |
7 u |
|
Value |
$2 |
$50 |
$100 |
|
Total value |
16 u |
300 u |
700 u |
$5080 |
Total value of $2, $50 and $100 notes
= 16 u + 300 u + 700 u
= 1016 u
1016 u = 5080
1 u = 5080 ÷ 1016 = 5
Number of $2 and $50 notes
= 8 u + 6 u
= 14 u
= 14 x 5
= 70
Answer(s): 70