PSLE
Three men, Ned, Jed and Eli had the same number of notes. Jed and Ned each had of mix of $50-notes and $20-notes. Jed had 10 $20-notes while Ned had 20 $20-notes. Eli had only $50-notes.

1. Of the three men, who had the least money? 
2. What was the difference in the total value of Jed and Ned's notes? 
3. Ned used all his $50-notes to buy a souvenir. Eli then had $900 more than Ned. How many $50-notes did Eli have?

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

Ned had more $20-notes than Jed while Eli had only the $50-notes.  

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

(b)
Difference in the number of notes of different values
= 20 - 10
= 10

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

Difference in the total value of Jed's and Ned's notes
= 10 x 30
= $300

(c)
Value of $20-notes that Ned had left
= 20 x 20
= $400

Total value that Eli had
= 900 + 400
= $1300

Number of $50-notes that Eli had
= 1300 ÷ 50
= 26

Answer(s): (a) Ned; (b) $300; (c) 26