The total mass of 2 bags of oat and 2 packets of maize was 50 kg. Each packet of maize was 5 kg lighter than each bag of oat.
- What was the mass of 1 bag of oat?
- What was the mass of 1 packet of maize?
(a)
Mass of a packet of maize = 1 u
Mass of a bag of oat = 1 u + 5
2 x (1 u + 5) + 2 x 1 u = 50
2 u + 10 + 2 u = 50
2 u + 2 u = 50 - 10
4 u = 40
1 u = 40 ÷ 4 = 10
Mass of 1 bag of oat
= 10 + 5
= 15 kg
(b)
Mass of 1 packet of maize = 1 u = 10 kg
Answer(s): (a) 15 kg; (b) 10 kg