Class V, W and X were given some candy canes to sell for their fund-raising project. The average number of candy canes the 3 classes had at first was 242. After Class W sold twice as many candy canes as Class V and Class X sold ⁶₇ as many candy canes as Class W, the average number of candy canes the 3 classes had left was 55. How many candy canes did Class V and Class X sell altogether?

Class V	Class W	Class X
1x7	2x7
	7x2	6x2
7 u	14 u	12 u

Class V : Class W : Class X
7 : 14 : 12

Total number of candy canes that the 3 classes had at first
= 3 x 242
= 726

Number of candy canes that the 3 classes left
= 3 x 55 
= 165

Number of candy canes that were sold by 3 classes
= 726 - 165
= 561

7 u + 14 u + 12 u = 561
33 u = 561

1 u = 561 ÷ 33 = 17

Total number of candy canes sold by Class V and Class X
= 7 u + 12 u
= 19 u
= 19 x 17
= 323

Answer(s): 323