O = P+3
A = 3P
O + A + P = 28
substituting ... (P+3) + 3P + P = 28
Rose was buying fruit at the local market to make a fruit cake for Christmas. The recipe calls for plums, apples, and oranges. She needed 3 more oranges than plums and three times as many apples than plums. If she bought 28 pieces of fruit, how many oranges did she buy?
1 answer