The total mass of 2 bags of green bean and 8 packets of ground pepper was 32 kg. Each packet of ground pepper was 6 kg lighter than each bag of green bean.
- What was the mass of 1 bag of green bean?
- What was the mass of 1 packet of ground pepper?
(a)
Mass of a packet of ground pepper = 1 u
Mass of a bag of green bean = 1 u + 6
2 x (1 u + 6) + 8 x 1 u = 32
2 u + 12 + 8 u = 32
2 u + 8 u = 32 - 12
10 u = 20
1 u = 20 ÷ 10 = 2
Mass of 1 bag of green bean
= 2 + 6
= 8 kg
(b)
Mass of 1 packet of ground pepper = 1 u = 2 kg
Answer(s): (a) 8 kg; (b) 2 kg