A toy car costs $120.
It costs 6 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 6 dolls cost?
Choose the cheaper item to be 1 u.
The toy car costs 6 times as much as the doll.
The doll is cheaper.
Cost of the toy car = 6 u = $120
Cost of the doll = 1 u
(a)
Cost of the doll
= 120 ÷ 6
= $20
(b)
Cost of the toy car more than the doll
= 6 u - 1 u
= 5 u
= 5 x 20
= $100
(c)
Cost of 1 toy car and 1 doll
= 6 u + 1 u
= 7 u
= 7 x 20
= $140
(d)
Cost of 3 toy cars and 6 dolls
= 3 x 6 u + 6 x 1 u
= 18 u + 6 u
= 24 u
= 24 x 20
= $480
Answer(s): (a) $20; (b) $100; (c) $140; (d) $480