The total mass of 7 packets of sugar and 5 packets of chicken powder is 201 kg. Each packet of sugar has a mass of 13 kg.
- What is the total mass of 7 packets of sugar?
- What is the total mass of 5 packets of chicken powder?
- If each bag of chicken powder has the same mass, what is the mass of 1 packet of chicken powder?
(a)
Let the mass of 1 packet of sugar and chicken powder be S and C respectively.
Let 1 packet of sugar be 1 S.
Let 1 packet of chicken powder be 1 C.
7 S + 5 C = 201
1 S = 13
Mass of 7 packets of sugar
= 7 x 13
= 91 kg
(b)
Mass of 5 packets of chicken powder
= 201 - 91
= 110 kg
(c)
Mass of 1 packet of chicken powder
= 110 ÷ 5
= 22 kg
Answer(s): (a) 91 kg; (b) 110 kg; (c) 22 kg