I have just done my Maths DCSE (Dog Certificate of Secondary Education). Blinking Nora, it woz difficult. One of the questions woz nearly impossible to answer.
Rover has a number of biscuits, six black kennel-shaped biscuits and an unidentified number of orange fish-shaped ones. Overall he has ‘N’ biscuits.
Rover eats one of the biscuits – it’s black. He then eats another biscuit, this is also black.
The probability of him eating these two black biscuits is a third.
How many biscuits will be left?
I sat for a long time pondering this question. Finally I used the following formula to work it out:
N = 6 (black) + N-6 (orange) – 1 x black = N-6-1 (black) = 0
Therefore there are zero biscuits left.
Wen I got home I asked Ian to carry out a practical experiment to prove this and he did a video of me…
If you are having difficulty with your maths, come to The Old Cider House, Dog Friendly B&B.