PSLE Justin had 14 more one-dollar notes than ten-dollar notes at first. He exchanged $110 worth of ten-dollar notes for one-dollar notes. How many less ten-dollar notes than one-dollar notes did Justin have after the exchange?
Number |
$1 |
$10 |
Before |
1 u + 14 |
1 u |
Change |
+ 110 |
- 11 |
After |
1 u + 14 + 110 |
1 u - 11 |
Number of ten-dollar notes that Justin exchanged into one-dollar notes
= 110 ÷ 10
= 11
Number of one-dollar notes that Justin received from the exchange
= 110 ÷ 1
= 110
Number of less ten-dollar notes than one-dollar notes
= 14 + 110 + 11
= 135
Answer: 135