Don, Hal and Ian had the same number of notes. Don and Hal had a mix of $50-notes and $20-notes. Don had 13 $50-notes while Hal had 16 $50-notes. Ian only had $50-notes.
- Who had the least amount of money?
- How much more did Hal have than Don?
- Hal used all his $20-notes to buy a wallet. He then had $900 less than Ian. How many $50-notes did Ian have?
(a)
The three boys had the same number of notes.
$50-notes have a higher denomination than $20-notes.
Since Don had the least number of $50-notes, he had the least money.
(b)
Number of more $50-notes that Hal had than Don
= 16 - 13
= 3
Difference in the value of $50-note and $20-note
= 50 - 20
= $30
Amount that Hal had more than Don
= 3 x 30
= $90
(c)
Value of $50-notes that Hal had left
= 16 x 50
= $800
Total value that Ian had
= 800 + 900
= $1700
Number of $50-notes that Ian had
= 1700 ÷ 50
= 34
Answer(s): (a) Don; (b) $90; (c) 34
