Fill in the blanks.
There are some $2 notes and $5 notes.
The ratio of $2 notes and $5 notes is 5 : 4.
- Total number of notes = _____ u
- Difference in the number of $2 notes and $5 notes = _____ u
- Total value of notes = _____ u
- Difference in the value of $5 notes and $2 notes = _____ u
Value |
$2 |
$5 |
Number |
5 u |
4 u |
Total value |
2 x 5 u = 10 u |
5 x 4 u = 20 u |
(a)
Change ratio into units.
Number of $2 notes = 5 u
Number of $5 notes = 4 u
Total number of notes
= 5 u + 4 u
= 9 u
(b)
Difference in the number of notes
= 5 u - 4 u
= 1 u
(c)
Total value of $2 notes
= 5 u x 2
= 10 u
Total value of $5 notes
= 4 u x 5
= 20 u
Total value of notes
= 10 u + 20 u
= 30 u
(d)
Difference in the value of notes
= 20 u - 10 u
= 10 u
Answer(s): (a) 9; (b) 1; (c) 30; (d) 10