Rio, Don and Lon had the same number of notes. Rio and Don had a mix of $100-notes and $50-notes. Don had 6 $100-notes while Rio had 13 $100-notes. Lon only had $100-notes.
- Who had the least amount of money?
- How much less did Don have than Rio?
- Rio used all his $50-notes to buy a wallet. He then had $2900 less than Lon. How many $100-notes did Lon have?
(a)
The three boys had the same number of notes.
$100-notes have a higher denomination than $50-notes.
Since Don had the least number of $100-notes, he had the least money.
(b)
Number of less $100-notes that Don had than Rio
= 13 - 6
= 7
Difference in the value of $100-note and $50-note
= 100 - 50
= $50
Amount that Don had less than Rio
= 7 x 50
= $350
(c)
Value of $100-notes that Rio had left
= 13 x 100
= $1300
Total value that Lon had
= 1300 + 2900
= $4200
Number of $100-notes that Lon had
= 4200 ÷ 100
= 42
Answer(s): (a) Don; (b) $350; (c) 42
