PSLE
Three men, Roy, Ned and Dan had the same number of notes. Ned and Roy each had of mix of $100-notes and $20-notes. Ned had 4 $20-notes while Roy had 12 $20-notes. Dan had only $100-notes.

1. Of the three men, who had the least money? 
2. What was the difference in the total value of Ned and Roy's notes? 
3. Roy used all his $100-notes to buy a souvenir. Dan then had $2260 more than Roy. How many $100-notes did Dan have?

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

Roy had more $20-notes than Ned while Dan had only the $100-notes.  

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

(b)
Difference in the number of notes of different values
= 12 - 4
= 8

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

Difference in the total value of Ned's and Roy's notes
= 8 x 80
= $640

(c)
Value of $20-notes that Roy had left
= 12 x 20
= $240

Total value that Dan had
= 2260 + 240
= $2500

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

Answer(s): (a) Roy; (b) $640; (c) 25