Adam has enough money to buy 3 marbles at $20 each.
If he does not buy the marbles, he can buy 10 beads with the same amount of money.
- How much does each bead cost?
- How much more is a marble than a bead?
(a)
Amount that Adam has
= 3 x 20
= $60
Cost of each bead
= 60 ÷ 10
= $6
(b)
Amount that a marble costs more than a bead
= 20 - 6
= $14
Answer(s): (a) $6; (b) $14