The number of $2, $5 and $50 notes in a piggy bank is in the ratio of 5 : 3 : 3. The notes are worth $1750 altogether. Find the total number of $2 and $5 notes.
|
$2 |
$5 |
$50 |
Total |
Number |
5 u |
3 u |
3 u |
|
Value |
$2 |
$5 |
$50 |
|
Total value |
10 u |
15 u |
150 u |
$1750 |
Total value of $2, $5 and $50 notes
= 10 u + 15 u + 150 u
= 175 u
175 u = 1750
1 u = 1750 ÷ 175 = 10
Number of $2 and $5 notes
= 5 u + 3 u
= 8 u
= 8 x 10
= 80
Answer(s): 80