Question

A cereal bar is sold in packs of 4, 6 or 8. The 4 pack of cereal bars costs £1.80 and it is the least value for money. The 8 pack of cereal bars cost £3.52 and it is the best value for money. Work out (a) the lowest price of the 6 pack of cereal bar (b) the highest price of the 6 pack of cereal bar

Answer 1

Given:

(i) Cereal bar is sold in packs of 4, 6 or 8.

(ii) The 4 pack of cereal bars costs £1.80 and it is the least value for money.

(iii) The 8 pack of cereal bars cost £3.52 and it is the best value for money.

To find:

(i) The lowest price of the 6 pack of cereal bar

(ii) The highest price of the 6 pack of cereal bar

Solution:

The lowest price of the cereal bar can be found from the lot which has the best value for money.

Here, 8 packs of cereal bars cost £3.52

So, according to the unitary method, 1 pack would cost £($\frac{3.52}{8}$)

Similarly, 6 packs would cost £($\frac{3.52*6}{8}$)

= £2.64.

This is the lowest price of 6 packs of cereal.

Again, the highest price of the cereal bar can be found from the lot which has the least value for money.

Here, 4 packs of cereal bars cost £1.80

So, according to the unitary method, 1 pack would cost £($\frac{1.80}{4}$)

Similarly, 6 packs would cost £($\frac{1.80*6}{4}$)

= £2.70.

This is the highest price of 6 packs of cereal.

So, the highest and lowest price of 6 packs of cereal are £2.70 and £2.64 respectively.