PSLE
Three men, Kit, Ty and Gus had the same number of notes. Ty and Kit each had of mix of $100-notes and $20-notes. Ty had 12 $20-notes while Kit had 19 $20-notes. Gus had only $100-notes.

1. Of the three men, who had the least money? 
2. What was the difference in the total value of Ty and Kit's notes? 
3. Kit used all his $100-notes to buy a souvenir. Gus then had $2120 more than Kit. How many $100-notes did Gus have?

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

Kit had more $20-notes than Ty while Gus had only the $100-notes.  

Since Kit had the most number of $20-notes, he had the least money.

(b)
Difference in the number of notes of different values
= 19 - 12
= 7

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

Difference in the total value of Ty's and Kit's notes
= 7 x 80
= $560

(c)
Value of $20-notes that Kit had left
= 19 x 20
= $380

Total value that Gus had
= 2120 + 380
= $2500

Number of $100-notes that Gus had
= 2500 ÷ 100
= 25

Answer(s): (a) Kit; (b) $560; (c) 25