Antonia1
Antonia1
22-04-2015
Mathematics
Answered
1kg costs £1.28. what is the cost of 250g
Answer :
iGreen
iGreen
23-04-2015
First, convert 1 kg to g.
1 kg = 1000 g
So 1000 g = 1.28
Set up a proportion:
1000/1.28 = 250/x
Cross multiply:
1000x = 320
Divide 1000 to both sides:
x = 0.32
So 250g costs £0.32
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