PSLE Simon had 16 more two-dollar notes than ten-dollar notes at first. He exchanged $60 worth of ten-dollar notes for two-dollar notes. How many more two-dollar notes than ten-dollar notes did Simon have after the exchange?
Number |
$2 |
$10 |
Before |
1 u + 16 |
1 u |
Change |
+ 30 |
- 6 |
After |
1 u + 16 + 30 |
1 u - 6 |
Number of ten-dollar notes that Simon exchanged into two-dollar notes
= 60 ÷ 10
= 6
Number of two-dollar notes that Simon received from the exchange
= 60 ÷ 2
= 30
Number of more two-dollar notes than ten-dollar notes
= 16 + 30 + 6
= 52
Answer: 52