A shop had 30 cardigans and some sweaters. During the sale,
16 of the cardigans and
15 of the sweaters were sold. 64 sweaters were left unsold.
- How many cardigans were sold?
- How many cardigans and sweaters were sold altogether?
|
Cardigans |
Sweaters |
Before |
30 |
5 u |
Change |
- 5 |
- 1 u |
After |
25 |
4 u |
(a)
Number of cardigans sold
= 16 x 30 = 5
(b)
Total number of sweaters = 5 u
Number of sweaters unsold
= 5 u - 1 u
= 4 u
4 u = 64
1 u = 64 ÷ 4 = 16
Number of sweaters sold = 16
Number of cardigans and sweaters sold
= 16 + 5
= 21
Answer(s): (a) 5; (b) 21