Question

What is the greatest value 20g of flour 3 for 3.50 or 40g of flour for 2 for 9£ which is better for money

Answer 1

It is better to buy 20 g of flour 3 for 3.50

Explanation:

It is given that 20g of 3 for 3.50

It means 3 packets of 20 g is 3*20 =60

So, 60g is for 3.50

So, 1 g =
`(3.5)/(60)`=0.05833 per gram.

Now, let's find unit rate for 40 g of 2 for 9.

2 packets of 40 gram = 2* 40 =80 grams

So, 80 grams costs 9

So, 1 gram =
`(9)/(80)` =0.1125

So, it is better to buy 20 g of flour 3 for 3.50