Adam has some $20-notes and some $50-notes that add up to $340.
There are 3 less $50-notes than $20-notes.
- What is the value of the extra 3 $20-notes?
- What is the value of one $20-note and one $50-note?
- How many $50 notes are there?
- How many $20 notes are there?
(a)
Value of the extra 3 $20 notes
= 3 x 20
= $60
(b)
Value of one $20-note and one $50-note
= 20 + 50
= $70
(c)
Number of $50 notes
= (340 - 60) ÷ 70
= 280 ÷ 70
= 4
(d)
Number of $20 notes
= 4 + 3
= 7
Answer(s): (a) $60; (b) $70; (c) 4; (d) 7