Class N, P and Q were given some lollipops to sell for their fund-raising project. The average number of lollipops the 3 classes had at first was 245. After Class P sold twice as many lollipops as Class N and Class Q sold ³₄ as many lollipops as Class P, the average number of lollipops the 3 classes had left was 44. How many lollipops did Class N and Class Q sell altogether?

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

Class N : Class P : Class Q
2 : 4 : 3

Total number of lollipops that the 3 classes had at first
= 3 x 245
= 735

Number of lollipops that the 3 classes left
= 3 x 44 
= 132

Number of lollipops that were sold by 3 classes
= 735 - 132
= 603

2 u + 4 u + 3 u = 603
9 u = 603

1 u = 603 ÷ 9 = 67

Total number of lollipops sold by Class N and Class Q
= 2 u + 3 u
= 5 u
= 5 x 67
= 335

Answer(s): 335