Adam has some $20-notes and some $50-notes that add up to $390.
There are 2 more $20-notes than $50-notes.
- What is the value of the extra 2 $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 2 $20 notes
= 2 x 20
= $40
(b)
Value of one $20-note and one $50-note
= 20 + 50
= $70
(c)
Number of $50 notes
= (390 - 40) ÷ 70
= 350 ÷ 70
= 5
(d)
Number of $20 notes
= 5 + 2
= 7
Answer(s): (a) $40; (b) $70; (c) 5; (d) 7