PSLE
Three men, Ian, Luc and Kit had the same number of notes. Luc and Ian each had of mix of $50-notes and $20-notes. Luc had 11 $20-notes while Ian had 17 $20-notes. Kit had only $50-notes.

1. Of the three men, who had the least money? 
2. What was the difference in the total value of Luc and Ian's notes? 
3. Ian used all his $50-notes to buy a souvenir. Kit then had $1160 more than Ian. How many $50-notes did Kit have?

(a)
The three men had the same number of notes.
$20-notes have a lower denomination than $50-notes.

Ian had more $20-notes than Luc while Kit had only the $50-notes.  

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

(b)
Difference in the number of notes of different values
= 17 - 11
= 6

Difference in the value of $50-note and $20-note
= 50 - 20
= $30

Difference in the total value of Luc's and Ian's notes
= 6 x 30
= $180

(c)
Value of $20-notes that Ian had left
= 17 x 20
= $340

Total value that Kit had
= 1160 + 340
= $1500

Number of $50-notes that Kit had
= 1500 ÷ 50
= 30

Answer(s): (a) Ian; (b) $180; (c) 30