Ian, Gus and Bo had the same number of notes. Ian and Gus had a mix of $20-notes and $10-notes. Ian had 4 $20-notes while Gus had 13 $20-notes. Bo only had $20-notes.
- Who had the least amount of money?
- How much more did Gus have than Ian?
- Gus used all his $10-notes to buy a wallet. He then had $600 less than Bo. How many $20-notes did Bo have?
(a)
The three boys had the same number of notes.
$20-notes have a higher denomination than $10-notes.
Since Ian had the least number of $20-notes, he had the least money.
(b)
Number of more $20-notes that Gus had than Ian
= 13 - 4
= 9
Difference in the value of $20-note and $10-note
= 20 - 10
= $10
Amount that Gus had more than Ian
= 9 x 10
= $90
(c)
Value of $20-notes that Gus had left
= 13 x 20
= $260
Total value that Bo had
= 260 + 600
= $860
Number of $20-notes that Bo had
= 860 ÷ 20
= 43
Answer(s): (a) Ian; (b) $90; (c) 43
