Christmas brain teasers: The answers...
1. Teeth, feet, head, ears and hands.
2. As I say, true story. There was a special deal: buy 10 cards and get 1 (or 2) free. This means that nobody would buy 10 since they may as well take the extra two for the same price. The deal was 50p per card or 12 for £5. So while buying 5, 15 or 20 cards was cheaper than buying 6, 16 or 21, buying 10 was not cheaper than buying 11, or indeed 12!
Then the "several" that bought 20 need to do their maths a bit better don't you think? Because by the same logic as your answer no-one would buy 20 (20 x 50p = £10 for 20), they would buy 2 x 12 (2 x £5 = £10 for 24). And then they could have sent me one of the spare cards.
ReplyDeleteIndeed you are right. Perhaps they just couldn't get their heads round it. Or something! :-)
ReplyDelete