PSLE Xavier had 14 more five-dollar notes than fifty-dollar notes at first. He exchanged $900 worth of fifty-dollar notes for five-dollar notes. How many less fifty-dollar notes than five-dollar notes did Xavier have after the exchange?
Number |
$5 |
$50 |
Before |
1 u + 14 |
1 u |
Change |
+ 180 |
- 18 |
After |
1 u + 14 + 180 |
1 u - 18 |
Number of fifty-dollar notes that Xavier exchanged into five-dollar notes
= 900 ÷ 50
= 18
Number of five-dollar notes that Xavier received from the exchange
= 900 ÷ 5
= 180
Number of less fifty-dollar notes than five-dollar notes
= 14 + 180 + 18
= 212
Answer: 212