Class R, S and T were given some caramel apples to sell for their fund-raising project. The average number of caramel apples the 3 classes had at first was 242. After Class S sold four times as many caramel apples as Class R and Class T sold ²₃ as many caramel apples as Class S, the average number of caramel apples the 3 classes had left was 58. How many caramel apples did Class R and Class T sell altogether?

Class R	Class S	Class T
1x3	4x3
	3x4	2x4
3 u	12 u	8 u

Class R : Class S : Class T
3 : 12 : 8

Total number of caramel apples that the 3 classes had at first
= 3 x 242
= 726

Number of caramel apples that the 3 classes left
= 3 x 58 
= 174

Number of caramel apples that were sold by 3 classes
= 726 - 174
= 552

3 u + 12 u + 8 u = 552
23 u = 552

1 u = 552 ÷ 23 = 24

Total number of caramel apples sold by Class R and Class T
= 3 u + 8 u
= 11 u
= 11 x 24
= 264

Answer(s): 264