Adam spends $47 and buys some marbles and beads.
Each bead is $3 and each marble is $4.
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 4
= $12
(b)
Cost of 1 bead and 1 marble
= 3 + 4
= $7
(c)
Cost of the marbles and beads (excluding the 3 extra marbles)
= 47 - 12
= $35
Number of sets of 1 bead and 1 marble
= 35 ÷ 7
= 5
Number of marbles that Adam buys
= 5 + 3
= 8
Answer(s): (a) $12; (b) $7; (c) 8