Question

a shop has bags of chips on offer.
offer 1
3 bags for 85 cents
offer 2
7 bags for $1.75
offer 3
15 bags for $3.99
which offer is the best value for money? explain your answer.
13.

Explanation:

Step1: Convert all to cents

Offer1: 85 cents; Offer2: $1.75 = 175 cents; Offer3: $3.99 = 399 cents

Step2: Calculate cost per bag

Offer1: $\frac{85}{3} \approx 28.33$ cents/bag
Offer2: $\frac{175}{7} = 25$ cents/bag
Offer3: $\frac{399}{15} = 26.6$ cents/bag

Step3: Compare per-bag costs

25 < 26.6 < 28.33

Answer:

Offer 2 is the best value for money, as it has the lowest cost per bag at 25 cents per bag, which is cheaper than the per-bag costs of Offer 1 (~28.33 cents) and Offer 3 (26.6 cents).