PSLE Harry had 17 more two-dollar notes than fifty-dollar notes at first. He exchanged $300 worth of fifty-dollar notes for two-dollar notes. How many less fifty-dollar notes than two-dollar notes did Harry have after the exchange?
Number |
$2 |
$50 |
Before |
1 u + 17 |
1 u |
Change |
+ 150 |
- 6 |
After |
1 u + 17 + 150 |
1 u - 6 |
Number of fifty-dollar notes that Harry exchanged into two-dollar notes
= 300 ÷ 50
= 6
Number of two-dollar notes that Harry received from the exchange
= 300 ÷ 2
= 150
Number of less fifty-dollar notes than two-dollar notes
= 17 + 150 + 6
= 173
Answer: 173