Three types of curry powder, G, H and J come in containers of 120 g, 160 g and 200 g respectively. Containers of G, H and J are mixed together in the ratio 2 : 3 : 5 to obtain 8.6 kg of an assortment of curry powder.

1. How many containers of G and H are used altogether?
2. Find the difference between the combined weight of all the curry powder in containers H and containers J as compared to the curry powder in containers G. Express the weight in kilograms.

	G	H	J
Number	2 u	3 u	5 u
Value	120	160	200
Total value	240 u	480 u	1000 u

(a)
Total mass of curry powder
= 240 u + 480 u + 1000 u
= 1720 u

1720 u = 8600

1 u = 8600 ÷ 1720 = 5

Total number of containers of G and H used
= 2 u + 3 u
= 5 u
= 5 x 5
= 25 

(b)
Combined weight of all the curry powder in containers H and containers J
= 480 u + 1000 u
= 1480 u

Difference between the combined weight of all the curry powder in containers H and containers J as compared to the curry powder in containers G
= 1480 u - 240 u
= 1240 u
= 1240 x 5
= 6200 g
= 6.2 kg 

Answer(s): (a) 25; (b) 6.2 kg