Cody bought 4 times as many chocolate bars as candy bars. The total mass of chocolate bars and candy bars was 1435 g. The mass of candy bars was 405 g less than that of the chocolate bars. The mass of 1 candy bar was 57 g heavier than 1 chocolate bar.

1. Find the number of candy bars that Cody bought.
2. Find the mass of 1 chocolate bar.

	Chocolate Bars	Candy Bars	Total
Number of sets	4 sets	1 set
Compare each	1 u	1 u + 57
Total value	920 g	515 g	1435 g

(a)
Mass of candy bars = 1 set
Mass of chocolate bars = 4 sets

Mass of candy bars = (1435 - 405) ÷ 2 = 515 g
Mass of chocolate bars = 515 + 405 = 920 g

Mass of 1 set of candy bars = 515 g
Mass of 1 set of chocolate bars = 920 ÷ 4 = 230 g

Difference in the mass between 1 set of candy bars and 1 set of chocolate bars
= 515 - 230
= 285 g

Number of items in each set
= 285 ÷ 57
= 5

Number of candy bars
= 1 x 5
= 5

(b)
Mass of 1 candy bar
= 515 ÷ 5
= 103 g

Mass of 1 chocolate bar
= 103 - 57
= 46 g

Answer(s): (a) 5; (b) 46 g