Adam has some $20-notes and some $10-notes that add up to $460.
There are 5 more $20-notes than $10-notes.
- What is the value of the extra 5 $20-notes?
- What is the value of one $20-note and one $10-note?
- How many $10 notes are there?
- How many $20 notes are there?
(a)
Value of the extra 5 $20 notes
= 5 x 20
= $100
(b)
Value of one $20-note and one $10-note
= 20 + 10
= $30
(c)
Number of $10 notes
= (460 - 100) ÷ 30
= 360 ÷ 30
= 12
(d)
Number of $20 notes
= 12 + 5
= 17
Answer(s): (a) $100; (b) $30; (c) 12; (d) 17