PSLE Liam had 14 more ten-dollar notes than fifty-dollar notes at first. He exchanged $650 worth of fifty-dollar notes for ten-dollar notes. How many less fifty-dollar notes than ten-dollar notes did Liam have after the exchange?
Number |
$10 |
$50 |
Before |
1 u + 14 |
1 u |
Change |
+ 65 |
- 13 |
After |
1 u + 14 + 65 |
1 u - 13 |
Number of fifty-dollar notes that Liam exchanged into ten-dollar notes
= 650 ÷ 50
= 13
Number of ten-dollar notes that Liam received from the exchange
= 650 ÷ 10
= 65
Number of less fifty-dollar notes than ten-dollar notes
= 14 + 65 + 13
= 92
Answer: 92