Sheila went to the store and bought 28 apples. She bought twice as many red apples as she bought green, and she bought one-fourth as many yellow as she did red. How many of each type of apple did she buy?

A.
16 red; 8 green; 4 yellow

B.
12 red; 13 green; 3 yellow

C.
14 red; 7 green; 7 yellow

D.
18 red; 8 green; 2 yellow

Question

Sheila went to the store and bought 28 apples. She bought twice as many red apples as she bought green, and she bought one-fourth as many yellow as she did red. How many of each type of apple did she buy?
 
 A.
16 red; 8 green; 4 yellow
 
 B.
12 red; 13 green; 3 yellow
 
 C.
14 red; 7 green; 7 yellow
 
 D.
18 red; 8 green; 2 yellow

anonymous · Answer

Ok so lets make three equations

total number of apples
r+g+y=28

twice as many red as green

g=2r

1/4 as many yellow as she did red

r=(1/4)y

now we have a system of equations, any idea where to go from here?