The number of $2, $10 and $50 notes in a piggy bank is in the ratio of 7 : 8 : 7. The notes are worth $4884 altogether. Find the total number of $2 and $10 notes.
|
$2 |
$10 |
$50 |
Total |
Number |
7 u |
8 u |
7 u |
|
Value |
$2 |
$10 |
$50 |
|
Total value |
14 u |
80 u |
350 u |
$4884 |
Total value of $2, $10 and $50 notes
= 14 u + 80 u + 350 u
= 444 u
444 u = 4884
1 u = 4884 ÷ 444 = 11
Number of $2 and $10 notes
= 7 u + 8 u
= 15 u
= 15 x 11
= 165
Answer(s): 165