PSLE
Three men, Ray, Jim and Sam had the same number of notes. Jim and Ray each had of mix of $100-notes and $10-notes. Jim had 4 $10-notes while Ray had 17 $10-notes. Sam 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 Ray's notes? 
3. Ray used all his $100-notes to buy a present. Sam then had $2230 more than Ray. How many $100-notes did Sam have?

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

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

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

(b)
Difference in the number of notes of different values
= 17 - 4
= 13

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

Difference in the total value of Jim's and Ray's notes
= 13 x 90
= $1170

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

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

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

Answer(s): (a) Ray; (b) $1170; (c) 24