Fill in the blanks.
There are some $2 notes and $10 notes.
The ratio of $2 notes and $10 notes is 7 : 3.
- Total number of notes = _____ u
- Difference in the number of $2 notes and $10 notes = _____ u
- Total value of notes = _____ u
- Difference in the value of $10 notes and $2 notes = _____ u
Value |
$2 |
$10 |
Number |
7 u |
3 u |
Total value |
2 x 7 u = 14 u |
10 x 3 u = 30 u |
(a)
Change ratio into units.
Number of $2 notes = 7 u
Number of $10 notes = 3 u
Total number of notes
= 7 u + 3 u
= 10 u
(b)
Difference in the number of notes
= 7 u - 3 u
= 4 u
(c)
Total value of $2 notes
= 7 u x 2
= 14 u
Total value of $10 notes
= 3 u x 10
= 30 u
Total value of notes
= 14 u + 30 u
= 44 u
(d)
Difference in the value of notes
= 30 u - 14 u
= 16 u
Answer(s): (a) 10; (b) 4; (c) 44; (d) 16