There's been a big issue about this coming up on a GCSE paper (for 16 year olds) lately. Personally I don't think it's so bad but I'd quite like to know your opinions please.
The teaser asked: 'There are n sweets in a bag. Six of the sweets are orange. The rest of the sweets are yellow.
'Hannah takes a sweet from the bag. She eats the sweet. Hannah then takes at random another sweet from the bag. She eats the sweet.
'The probability that Hannah eats two orange sweets is 1/3. Show that n²-n-90=0'