Fill in the blanks.
There are some $5 notes and $10 notes.
The ratio of $5 notes and $10 notes is 4 : 3.
- Total number of notes = _____ u
- Difference in the number of $5 notes and $10 notes = _____ u
- Total value of notes = _____ u
- Difference in the value of $10 notes and $5 notes = _____ u
Value |
$5 |
$10 |
Number |
4 u |
3 u |
Total value |
5 x 4 u = 20 u |
10 x 3 u = 30 u |
(a)
Change ratio into units.
Number of $5 notes = 4 u
Number of $10 notes = 3 u
Total number of notes
= 4 u + 3 u
= 7 u
(b)
Difference in the number of notes
= 4 u - 3 u
= 1 u
(c)
Total value of $5 notes
= 4 u x 5
= 20 u
Total value of $10 notes
= 3 u x 10
= 30 u
Total value of notes
= 20 u + 30 u
= 50 u
(d)
Difference in the value of notes
= 30 u - 20 u
= 10 u
Answer(s): (a) 7; (b) 1; (c) 50; (d) 10