Class V, W and X were given some lollipops to sell for their donation drive. The average number of lollipops the 3 classes had at first was 214. After Class W sold twice as many lollipops as Class V and Class X sold ³₄ as many lollipops as Class W, the average number of lollipops the 3 classes had left was 55. How many lollipops did Class V and Class X sell altogether?

Class V	Class W	Class X
1x2	2x2
	4x1	3x1
2 u	4 u	3 u

Class V : Class W : Class X
2 : 4 : 3

Total number of lollipops that the 3 classes had at first
= 3 x 214
= 642

Number of lollipops that the 3 classes left
= 3 x 55 
= 165

Number of lollipops that were sold by 3 classes
= 642 - 165
= 477

2 u + 4 u + 3 u = 477
9 u = 477

1 u = 477 ÷ 9 = 53

Total number of lollipops sold by Class V and Class X
= 2 u + 3 u
= 5 u
= 5 x 53
= 265

Answer(s): 265