PSLE Three boys, Jed, Hal and Asa had the same number of notes. Jed and Hal each had of mix of $10-notes and $5-notes. Jed had 5 $5-notes while Hal had 14 $5-notes. Asa had only $10-notes.
- Of the three boys, who had the most money?
- What was the difference in the total value of Jed and Hal's notes?
- Hal used all his $10-notes to buy a souvenir. He then had $150 less than Asa. How many $10-notes did Asa have?
(a)
The three boys had the same number of notes.
$5-notes have a lower denomination than $10-notes.
Since Asa had only $10-notes, he had the most money.
(b)
Difference in the number of notes of different values
= 14 - 5
= 9
Difference in the value of $10-notes and $5-notes
= 10 - 5
= $5
Difference in the total value of Jed's and Hal's notes
= 9 x 5
= $45
(c)
Value of $5-notes that Hal had left
= 14 x 5
= $70
Total value that Asa had
= 150 + 70
= $220
Number of $10-notes that Asa had
= 220 ÷ 10
= 22
Answer(s): (a) Asa; (b) $45; (c) 22