Gus, Tom and Ben had the same number of notes. Gus and Tom had a mix of $100-notes and $20-notes. Gus had 6 $100-notes while Tom had 12 $100-notes. Ben only had $100-notes.

1. Who had the least amount of money?
2. How much more did Tom have than Gus?
3. Tom used all his $20-notes to buy a wallet. He then had $2000 less than Ben. How many $100-notes did Ben have?

(a)
The three boys had the same number of notes.
$100-notes have a higher denomination than $20-notes.

Since Gus had the least number of $100-notes, he had the least money.

(b)
Number of more $100-notes that Tom had than Gus
= 12 - 6
= 6

Difference in the value of $100-note and $20-note
= 100 - 20
= $80

Amount that Tom had more than Gus
= 6 x 80
= $480

(c)
Value of $100-notes that Tom had left
= 12 x 100
= $1200

Total value that Ben had
= 1200 + 2000
= $3200

Number of $100-notes that Ben had
= 3200 ÷ 100
= 32

Answer(s): (a) Gus; (b) $480; (c) 32