The number of $2, $10 and $100 notes in a piggy bank is in the ratio of 3 : 6 : 1. The notes are worth $1826 altogether. Find the total number of $2 and $10 notes.
|
$2 |
$10 |
$100 |
Total |
Number |
3 u |
6 u |
1 u |
|
Value |
$2 |
$10 |
$100 |
|
Total value |
6 u |
60 u |
100 u |
$1826 |
Total value of $2, $10 and $100 notes
= 6 u + 60 u + 100 u
= 166 u
166 u = 1826
1 u = 1826 ÷ 166 = 11
Number of $2 and $10 notes
= 3 u + 6 u
= 9 u
= 9 x 11
= 99
Answer(s): 99