Fill in the blanks.
There are some $2 notes and $5 notes.
The ratio of $2 notes and $5 notes is 7 : 5.
- Total number of notes = _____ u
- Difference in the number of $2 notes and $5 notes = _____ u
- Total value of notes = _____ u
- Difference in the value of $5 notes and $2 notes = _____ u
Value |
$2 |
$5 |
Number |
7 u |
5 u |
Total value |
2 x 7 u = 14 u |
5 x 5 u = 25 u |
(a)
Change ratio into units.
Number of $2 notes = 7 u
Number of $5 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 $2 notes
= 7 u x 2
= 14 u
Total value of $5 notes
= 5 u x 5
= 25 u
Total value of notes
= 14 u + 25 u
= 39 u
(d)
Difference in the value of notes
= 25 u - 14 u
= 11 u
Answer(s): (a) 12; (b) 2; (c) 39; (d) 11