Fill in the blanks.
There are some $2 notes and $10 notes.
The ratio of $2 notes and $10 notes is 9 : 4.
- Total number of notes = _____ u
- Difference in the number of $2 notes and $10 notes = _____ u
- Total value of notes = _____ u
- Difference in the value of $10 notes and $2 notes = _____ u
Value |
$2 |
$10 |
Number |
9 u |
4 u |
Total value |
2 x 9 u = 18 u |
10 x 4 u = 40 u |
(a)
Change ratio into units.
Number of $2 notes = 9 u
Number of $10 notes = 4 u
Total number of notes
= 9 u + 4 u
= 13 u
(b)
Difference in the number of notes
= 9 u - 4 u
= 5 u
(c)
Total value of $2 notes
= 9 u x 2
= 18 u
Total value of $10 notes
= 4 u x 10
= 40 u
Total value of notes
= 18 u + 40 u
= 58 u
(d)
Difference in the value of notes
= 40 u - 18 u
= 22 u
Answer(s): (a) 13; (b) 5; (c) 58; (d) 22