The number of $2, $5 and $50 notes in a piggy bank is in the ratio of 1 : 9 : 6. The notes are worth $2776 altogether. Find the total number of $2 and $5 notes.
|
$2 |
$5 |
$50 |
Total |
Number |
1 u |
9 u |
6 u |
|
Value |
$2 |
$5 |
$50 |
|
Total value |
2 u |
45 u |
300 u |
$2776 |
Total value of $2, $5 and $50 notes
= 2 u + 45 u + 300 u
= 347 u
347 u = 2776
1 u = 2776 ÷ 347 = 8
Number of $2 and $5 notes
= 1 u + 9 u
= 10 u
= 10 x 8
= 80
Answer(s): 80