Fill in the blanks.
There are some $10 notes and $100 notes.
The ratio of $10 notes and $100 notes is 8 : 5.
- 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 |
8 u |
5 u |
Total value |
10 x 8 u = 80 u |
100 x 5 u = 500 u |
(a)
Change ratio into units.
Number of $10 notes = 8 u
Number of $100 notes = 5 u
Total number of notes
= 8 u + 5 u
= 13 u
(b)
Difference in the number of notes
= 8 u - 5 u
= 3 u
(c)
Total value of $10 notes
= 8 u x 10
= 80 u
Total value of $100 notes
= 5 u x 100
= 500 u
Total value of notes
= 80 u + 500 u
= 580 u
(d)
Difference in the value of notes
= 500 u - 80 u
= 420 u
Answer(s): (a) 13; (b) 3; (c) 580; (d) 420