PSLE Cody had 19 more one-dollar notes than fifty-dollar notes at first. He exchanged $900 worth of fifty-dollar notes for one-dollar notes. How many more one-dollar notes than fifty-dollar notes did Cody have after the exchange?
Number |
$1 |
$50 |
Before |
1 u + 19 |
1 u |
Change |
+ 900 |
- 18 |
After |
1 u + 19 + 900 |
1 u - 18 |
Number of fifty-dollar notes that Cody exchanged into one-dollar notes
= 900 ÷ 50
= 18
Number of one-dollar notes that Cody received from the exchange
= 900 ÷ 1
= 900
Number of more one-dollar notes than fifty-dollar notes
= 19 + 900 + 18
= 937
Answer: 937