Fill in the blanks.
There are some $2 notes and $10 notes.
The ratio of $2 notes and $10 notes is 11 : 9.
- 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 |
11 u |
9 u |
Total value |
2 x 11 u = 22 u |
10 x 9 u = 90 u |
(a)
Change ratio into units.
Number of $2 notes = 11 u
Number of $10 notes = 9 u
Total number of notes
= 11 u + 9 u
= 20 u
(b)
Difference in the number of notes
= 11 u - 9 u
= 2 u
(c)
Total value of $2 notes
= 11 u x 2
= 22 u
Total value of $10 notes
= 9 u x 10
= 90 u
Total value of notes
= 22 u + 90 u
= 112 u
(d)
Difference in the value of notes
= 90 u - 22 u
= 68 u
Answer(s): (a) 20; (b) 2; (c) 112; (d) 68