Kit, Ari and Hal had the same number of notes. Kit and Ari had a mix of $50-notes and $10-notes. Ari had 11 $50-notes while Kit had 15 $50-notes. Hal only had $50-notes.

1. Who had the least amount of money?
2. How much less did Ari have than Kit?
3. Kit used all his $10-notes to buy a wallet. He then had $1350 less than Hal. How many $50-notes did Hal have?

(a)
The three boys had the same number of notes.
$50-notes have a higher denomination than $10-notes.

Since Ari had the least number of $50-notes, he had the least money.

(b)
Number of less $50-notes that Ari had than Kit
= 15 - 11
= 4

Difference in the value of $50-note and $10-note
= 50 - 10
= $40

Amount that Ari had less than Kit
= 4 x 40
= $160

(c)
Value of $50-notes that Kit had left
= 15 x 50
= $750

Total value that Hal had
= 750 + 1350
= $2100

Number of $50-notes that Hal had
= 2100 ÷ 50
= 42

Answer(s): (a) Ari; (b) $160; (c) 42