Question

Bags of sugar come in 3 sizes:

Small bag: A 250 g bag costs 45p.
Medium bag: A 500 g bag costs £0.95.
Large bag: A 3 kg bag costs £2.60.

Calculate the cost of 3 kg for the small and medium bags.
Give your answer in pounds to 2 decimal point

Answer 1

Small bag = £5.4

Medium bag = £5.7

Explanation:

For Small Bags

First find out how many small bags make 3kg

3kg = 3000g

3000/250 = 12

Therefore 12 small bags weigh 3kg

Next find the cost of 12 small bags

12 x 0.45 = £5.4

Therefore costs £5.4 for 3kg worth of small bags

For Medium Bags

First find how many medium bags make 3kg

3kg = 3000g

3000/500 = 6

Therefore 6 medium bags weigh 3kg

Next find the cost of 6 medium bags

6 x 0.95 = £5.7

Therefore costs £5.7 for 3kg worth of medium bags