Question

2.5kg of potatoes cost £1.40 work out the cost of 4.25kg of potatoes

Answer 1

The cost of 4.25 kg of potatoes will be £2.38

Explanation:

This question will be solved by unitary method.first we calculate the cost of one kg potatoes then the cost of 4.25 kg potatoes.

Now let us solve the question

∵ 2.5 kg of potatoes cost is = £1.40

∴ 1 kg of potatoes cost will be = 1.40÷2.5

∴ 4.25 kg of potatoes will cost =
`(1.40)/(2.5)`×4.25

=
`(5.95)/(2.5)`

= £2.38