The total mass of 2 packets of sesame seed and 8 bags of flour was 36 kg. Each bag of flour was 8 kg lighter than each packet of sesame seed.
- What was the mass of 1 packet of sesame seed?
- What was the mass of 1 bag of flour?
(a)
Mass of a bag of flour = 1 u
Mass of a packet of sesame seed = 1 u + 8
2 x (1 u + 8) + 8 x 1 u = 36
2 u + 16 + 8 u = 36
2 u + 8 u = 36 - 16
10 u = 20
1 u = 20 ÷ 10 = 2
Mass of 1 packet of sesame seed
= 2 + 8
= 10 kg
(b)
Mass of 1 bag of flour = 1 u = 2 kg
Answer(s): (a) 10 kg; (b) 2 kg