A toy car costs $100.
It costs 5 times as much as a doll.
- How much is the doll?
- How much is the toy car more than the doll?
- How much will 1 toy car and 1 doll cost?
- How much will 3 toy cars and 9 dolls cost?
Choose the cheaper item to be 1 u.
The toy car costs 5 times as much as the doll.
The doll is cheaper.
Cost of the toy car = 5 u = $100
Cost of the doll = 1 u
(a)
Cost of the doll
= 100 ÷ 5
= $20
(b)
Cost of the toy car more than the doll
= 5 u - 1 u
= 4 u
= 4 x 20
= $80
(c)
Cost of 1 toy car and 1 doll
= 5 u + 1 u
= 6 u
= 6 x 20
= $120
(d)
Cost of 3 toy cars and 9 dolls
= 3 x 5 u + 9 x 1 u
= 15 u + 9 u
= 24 u
= 24 x 20
= $480
Answer(s): (a) $20; (b) $80; (c) $120; (d) $480