Fill in the blanks.
There are some $2 notes and $100 notes.
The ratio of $2 notes and $100 notes is 10 : 7.
- Total number of notes = _____ u
- Difference in the number of $2 notes and $100 notes = _____ u
- Total value of notes = _____ u
- Difference in the value of $100 notes and $2 notes = _____ u
Value |
$2 |
$100 |
Number |
10 u |
7 u |
Total value |
2 x 10 u = 20 u |
100 x 7 u = 700 u |
(a)
Change ratio into units.
Number of $2 notes = 10 u
Number of $100 notes = 7 u
Total number of notes
= 10 u + 7 u
= 17 u
(b)
Difference in the number of notes
= 10 u - 7 u
= 3 u
(c)
Total value of $2 notes
= 10 u x 2
= 20 u
Total value of $100 notes
= 7 u x 100
= 700 u
Total value of notes
= 20 u + 700 u
= 720 u
(d)
Difference in the value of notes
= 700 u - 20 u
= 680 u
Answer(s): (a) 17; (b) 3; (c) 720; (d) 680