Tom, Jon and Don had the same number of notes. Tom and Jon had a mix of $20-notes and $10-notes. Jon had 6 $20-notes while Tom had 14 $20-notes. Don only had $20-notes.
- Who had the least amount of money?
- How much less did Jon have than Tom?
- Tom used all his $10-notes to buy a wallet. He then had $400 less than Don. How many $20-notes did Don have?
(a)
The three boys had the same number of notes.
$20-notes have a higher denomination than $10-notes.
Since Jon had the least number of $20-notes, he had the least money.
(b)
Number of less $20-notes that Jon had than Tom
= 14 - 6
= 8
Difference in the value of $20-note and $10-note
= 20 - 10
= $10
Amount that Jon had less than Tom
= 8 x 10
= $80
(c)
Value of $20-notes that Tom had left
= 14 x 20
= $280
Total value that Don had
= 280 + 400
= $680
Number of $20-notes that Don had
= 680 ÷ 20
= 34
Answer(s): (a) Jon; (b) $80; (c) 34
