The number of $2, $20 and $50 notes in a piggy bank is in the ratio of 6 : 8 : 7. The notes are worth $6264 altogether. Find the total number of $2 and $20 notes.
|
$2 |
$20 |
$50 |
Total |
Number |
6 u |
8 u |
7 u |
|
Value |
$2 |
$20 |
$50 |
|
Total value |
12 u |
160 u |
350 u |
$6264 |
Total value of $2, $20 and $50 notes
= 12 u + 160 u + 350 u
= 522 u
522 u = 6264
1 u = 6264 ÷ 522 = 12
Number of $2 and $20 notes
= 6 u + 8 u
= 14 u
= 14 x 12
= 168
Answer(s): 168