Question

you can either look at prices of a grocery product online or in a grocery store. Pick a product that comes in at least two different sizes and compare the unit prices of that product at the same store or online. Pick a product and compare the unit price of that product at two different stores/online shops (the sizes can be the same or different). Give your answer in cents per unit size and round your answer to the nearest hundredth. Which is the better deal?

Answer 1

The data for the problem is not provided

So using variables to solve a problem

Let us assume that we went for buying pulses at the grocery store

Price $a for 1 Kg pack

Price $b for 5 Kg pack

Unit price of 1Kg pulse packet = min($a,$b/5)

Let us assume that we went for buying pulses at the online store

Price $c for 1 Kg pack

Price $d for 5 Kg pack

Unit price of 1Kg pulse packet at online store = min($c,$d/5)

For online store, price will be min($c,$d/5)

For grocery store, price will be min($a,$b/5)

If ( min($a,$b/5) > min($c,$d/5))

Then online store is providing better deal

If ( min($a,$b/5) < min($c,$d/5))

Then grocery store is providing better deal