Class M, N and P were given some lollipops to sell for their charity drive. The average number of lollipops the 3 classes had at first was 229. After Class N sold twice as many lollipops as Class M and Class P sold ³₄ as many lollipops as Class N, the average number of lollipops the 3 classes had left was 52. How many lollipops did Class M and Class P sell altogether?

Class M	Class N	Class P
1x2	2x2
	4x1	3x1
2 u	4 u	3 u

Class M : Class N : Class P
2 : 4 : 3

Total number of lollipops that the 3 classes had at first
= 3 x 229
= 687

Number of lollipops that the 3 classes left
= 3 x 52 
= 156

Number of lollipops that were sold by 3 classes
= 687 - 156
= 531

2 u + 4 u + 3 u = 531
9 u = 531

1 u = 531 ÷ 9 = 59

Total number of lollipops sold by Class M and Class P
= 2 u + 3 u
= 5 u
= 5 x 59
= 295

Answer(s): 295