
This is a box of Waitrose cookies, opened out.
The cookies in the photo on the box are about
1.17 (or 1 and one-sixth) as wide as the real thing.
So their volume is about 1.17 x 1.17 x 1.17 as large
as the real thing,
ie about 1.6 times the real thing,
ie more than half as big again as the real thing.
Estimate how many cookies there are in a 'full' box.
- fifteen?
- twelve?
- ten?
- no, just seven.
Is this stated on the box? No, only that the net weight is 150g.
The biscuits cost £1.80, or £1.20 per 100g,
so smaller and fewer and more expensive biscuits than one might expect.
Gulp!
Never mind.
Their 'Maryland' chocolate chip and hazlenut biscuits cost only 69p per 100g (or 57p at Sainsbury's).

