Fill in the blanks.
There are some $50 notes and $100 notes.
The ratio of $50 notes and $100 notes is 7 : 5.
- Total number of notes = _____ u
- Difference in the number of $50 notes and $100 notes = _____ u
- Total value of notes = _____ u
- Difference in the value of $100 notes and $50 notes = _____ u
Value |
$50 |
$100 |
Number |
7 u |
5 u |
Total value |
50 x 7 u = 350 u |
100 x 5 u = 500 u |
(a)
Change ratio into units.
Number of $50 notes = 7 u
Number of $100 notes = 5 u
Total number of notes
= 7 u + 5 u
= 12 u
(b)
Difference in the number of notes
= 7 u - 5 u
= 2 u
(c)
Total value of $50 notes
= 7 u x 50
= 350 u
Total value of $100 notes
= 5 u x 100
= 500 u
Total value of notes
= 350 u + 500 u
= 850 u
(d)
Difference in the value of notes
= 500 u - 350 u
= 150 u
Answer(s): (a) 12; (b) 2; (c) 850; (d) 150