Fill in the blanks.
There are some $10 notes and $50 notes.
The ratio of $10 notes and $50 notes is 7 : 4.
- Total number of notes = _____ u
- Difference in the number of $10 notes and $50 notes = _____ u
- Total value of notes = _____ u
- Difference in the value of $50 notes and $10 notes = _____ u
Value |
$10 |
$50 |
Number |
7 u |
4 u |
Total value |
10 x 7 u = 70 u |
50 x 4 u = 200 u |
(a)
Change ratio into units.
Number of $10 notes = 7 u
Number of $50 notes = 4 u
Total number of notes
= 7 u + 4 u
= 11 u
(b)
Difference in the number of notes
= 7 u - 4 u
= 3 u
(c)
Total value of $10 notes
= 7 u x 10
= 70 u
Total value of $50 notes
= 4 u x 50
= 200 u
Total value of notes
= 70 u + 200 u
= 270 u
(d)
Difference in the value of notes
= 200 u - 70 u
= 130 u
Answer(s): (a) 11; (b) 3; (c) 270; (d) 130