PSLE
Three men, Sam, Asa and Ray had the same number of notes. Asa and Sam each had of mix of $100-notes and $10-notes. Asa had 2 $10-notes while Sam had 17 $10-notes. Ray had only $100-notes.

1. Of the three men, who had the least money? 
2. What was the difference in the total value of Asa and Sam's notes? 
3. Sam used all his $100-notes to buy a souvenir. Ray then had $2230 more than Sam. How many $100-notes did Ray have?

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

Sam had more $10-notes than Asa while Ray had only the $100-notes.  

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

(b)
Difference in the number of notes of different values
= 17 - 2
= 15

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

Difference in the total value of Asa's and Sam's notes
= 15 x 90
= $1350

(c)
Value of $10-notes that Sam had left
= 17 x 10
= $170

Total value that Ray had
= 2230 + 170
= $2400

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

Answer(s): (a) Sam; (b) $1350; (c) 24