PSLE
Three men, Kit, Jim and Rio had the same number of notes. Jim and Kit each had of mix of $100-notes and $10-notes. Jim had 5 $10-notes while Kit had 10 $10-notes. Rio had only $100-notes.

1. Of the three men, who had the least money? 
2. What was the difference in the total value of Jim and Kit's notes? 
3. Kit used all his $100-notes to buy a gift. Rio then had $2300 more than Kit. How many $100-notes did Rio have?

(a)
The three men had the same number of notes.
$10-notes have a lower denomination than $100-notes.

Kit had more $10-notes than Jim while Rio had only the $100-notes.  

Since Kit had the most number of $10-notes, he had the least money.

(b)
Difference in the number of notes of different values
= 10 - 5
= 5

Difference in the value of $100-note and $10-note
= 100 - 10
= $90

Difference in the total value of Jim's and Kit's notes
= 5 x 90
= $450

(c)
Value of $10-notes that Kit had left
= 10 x 10
= $100

Total value that Rio had
= 2300 + 100
= $2400

Number of $100-notes that Rio had
= 2400 ÷ 100
= 24

Answer(s): (a) Kit; (b) $450; (c) 24