Adam spends $33 and buys some marbles and beads.
Each bead is $4 and each marble is $5.
He buys 3 more marbles than beads.
- What is the cost of the 3 more marbles?
- What is the cost of 1 bead and 1 marble?
- How many marbles does he buy?
(a)
Cost that Adam pays for the 3 more marbles
= 3 x 5
= $15
(b)
Cost of 1 bead and 1 marble
= 4 + 5
= $9
(c)
Cost of the marbles and beads (excluding the 3 extra marbles)
= 33 - 15
= $18
Number of sets of 1 bead and 1 marble
= 18 ÷ 9
= 2
Number of marbles that Adam buys
= 2 + 3
= 5
Answer(s): (a) $15; (b) $9; (c) 5