math
posted by mamta on .
a grocery store stocks 3 brands of yogurt.store sells two containers of brand A yogurt for every one container of brand B or brand C yogurt.if the store sells 100 containers of yogurt a day,how much of each brand of yogurt do they sell?

A = 2B = 2C
A + A/2 + A/2 = 100
2A = 100
Calculate it from there. 
The grocery stocks yougurt in 2 refridgerators and sells them for 2.20 per container. Overnight one refridgerator malfunctions and ruins 15 containers of yogurt. The leftover yogurt sold for $3.98 each. How many containers did the store have to begin with if they made a profit of $114.74?