Fill in the blanks.
There are some $5 notes and $50 notes.
The ratio of $5 notes and $50 notes is 8 : 7.
- Total number of notes = _____ u
- Difference in the number of $5 notes and $50 notes = _____ u
- Total value of notes = _____ u
- Difference in the value of $50 notes and $5 notes = _____ u
Value |
$5 |
$50 |
Number |
8 u |
7 u |
Total value |
5 x 8 u = 40 u |
50 x 7 u = 350 u |
(a)
Change ratio into units.
Number of $5 notes = 8 u
Number of $50 notes = 7 u
Total number of notes
= 8 u + 7 u
= 15 u
(b)
Difference in the number of notes
= 8 u - 7 u
= 1 u
(c)
Total value of $5 notes
= 8 u x 5
= 40 u
Total value of $50 notes
= 7 u x 50
= 350 u
Total value of notes
= 40 u + 350 u
= 390 u
(d)
Difference in the value of notes
= 350 u - 40 u
= 310 u
Answer(s): (a) 15; (b) 1; (c) 390; (d) 310