Fill in the blanks.
There are some $10 notes and $100 notes.
The ratio of $10 notes and $100 notes is 9 : 1.
- Total number of notes = _____ u
- Difference in the number of $10 notes and $100 notes = _____ u
- Total value of notes = _____ u
- Difference in the value of $100 notes and $10 notes = _____ u
Value |
$10 |
$100 |
Number |
9 u |
1 u |
Total value |
10 x 9 u = 90 u |
100 x 1 u = 100 u |
(a)
Change ratio into units.
Number of $10 notes = 9 u
Number of $100 notes = 1 u
Total number of notes
= 9 u + 1 u
= 10 u
(b)
Difference in the number of notes
= 9 u - 1 u
= 8 u
(c)
Total value of $10 notes
= 9 u x 10
= 90 u
Total value of $100 notes
= 1 u x 100
= 100 u
Total value of notes
= 90 u + 100 u
= 190 u
(d)
Difference in the value of notes
= 100 u - 90 u
= 10 u
Answer(s): (a) 10; (b) 8; (c) 190; (d) 10