Question

a 250g packetof iodised salt costs 150 naira a 20kg sack of salt costs 10400 naira calculate the saving per kg by buying the 20 kg sack of salt​

Answer 1

Answer:

1600 naira

Step-by-step explanation:

let the saving be x

80 X 250g = 20kg

Therefore,

80 X 150naira should be 10400naira

but there is saving of x naira

so,

80 X 150 = 10400 - x

12000 = 10400 - x

x = 10400 - 12000

x = 1600

so,

There is saving of 1600 naira