A shop had 30 shirts and some sweaters. During the sale,
23 of the shirts and
13 of the sweaters were sold. 64 sweaters were left unsold.
- How many shirts were sold?
- How many shirts and sweaters were sold altogether?
|
Shirts |
Sweaters |
Before |
30 |
3 u |
Change |
- 20 |
- 1 u |
After |
10 |
2 u |
(a)
Number of shirts sold
= 23 x 30 = 20
(b)
Total number of sweaters = 3 u
Number of sweaters unsold
= 3 u - 1 u
= 2 u
2 u = 64
1 u = 64 ÷ 2 = 32
Number of sweaters sold = 32
Number of shirts and sweaters sold
= 32 + 20
= 52
Answer(s): (a) 20; (b) 52