Ray, Eli and Luc had the same number of notes. Ray and Eli had a mix of $20-notes and $10-notes. Eli had 9 $20-notes while Ray had 16 $20-notes. Luc only had $20-notes.
- Who had the least amount of money?
- How much less did Eli have than Ray?
- Ray used all his $10-notes to buy a wallet. He then had $280 less than Luc. How many $20-notes did Luc have?
(a)
The three boys had the same number of notes.
$20-notes have a higher denomination than $10-notes.
Since Eli had the least number of $20-notes, he had the least money.
(b)
Number of less $20-notes that Eli had than Ray
= 16 - 9
= 7
Difference in the value of $20-note and $10-note
= 20 - 10
= $10
Amount that Eli had less than Ray
= 7 x 10
= $70
(c)
Value of $20-notes that Ray had left
= 16 x 20
= $320
Total value that Luc had
= 320 + 280
= $600
Number of $20-notes that Luc had
= 600 ÷ 20
= 30
Answer(s): (a) Eli; (b) $70; (c) 30
