The table shows the prices of macarons at two shops. The macarons are only sold in sets of 3 macarons in Usha's Bakery or sets of 4 macarons in Opal's Bakery.
Shop |
Price of macarons |
Usha's Bakery |
3 for $5 |
Opal's Bakery |
4 for $8 |
- Vanessa has $23.30. She wants to buy 16 macarons from Opal's Bakery. How much more money does she need to buy the 16 macarons?
- Oscar has $82. He wants to buy the greatest possible number of macarons with his money from one of the two shops. What is the greatest possible number of macarons he can buy with his money?
(a)
Number of sets of 4 macarons
= 16 ÷ 4
= 4
Cost of 16 macarons
= 4 x 8
= $32
Amount that Vanessa needs more to buy the 16 macarons
= 32 - 23.30
= $8.70
(b)
Number of sets of 3 macarons that Oscar could buy at Usha's Bakery
= 82 ÷ 5
= 16 r 2
Number of macarons that Oscar could buy at Usha's Bakery
= 16 x 3
= 48
(More)Number of sets of 4 macarons that Oscar could buy at Opal's Bakery
= 82 ÷ 8
= 10 r 2
Number of macarons that Oscar could buy at Opal's Bakery
= 10 x 4
= 40
Greatest possible number of macarons that Oscar can buy with his money = 48
Answer(s): (a) $8.70; (b) 48