Honest British supermarkets

I live in London. Wife went to the store to buy the New Year Olivier mayonnaise. He came to the store, took what he was looking at the same time decided to take the fruit. Because the trail. the day the store was closed, many products discounted. I decided to take a couple of packages of bananas and nectarines. I was very surprised when at the box office with me, not only did not take the money, but also a 11 pence surcharge. Came store manager said, "All right," and let me go shopping and 11 pence in his pocket.

* The trick is that the full price of nectarines were "buy one second free»
The math is simple, just look at the check!

Nectarines at the regular price worth 3 pounds. But give them a bargain package for free. It turns out in the usual form:

1 pack Nectarines: 3 pounds
2 pack Nectarines: 3 pounds
1 pack free: -3 lbs.

 - But their discount (it was the end of the working day)
Now we get the following formula:

1 pack Nectarines: 0.25 pounds
2 pack Nectarines: 0.25 pounds
1 pack free: -3 lbs.





Source: