How to calculate probability GCSE questions1. Jason picks one of the following cards at random. (a) Find the probability that Jason picks a H. (b) Find the probability that Jason picks an M or an A. (c) Find the probability that Jason does not pick an M. (3 marks) Show answer ...
We know now that Tom buys for £12 and sells for £18. His profit is £6. We could now use a ratio table to calculate his percentage profit – however, for many students, this part of the calculation could probably be done mentally. I wouldn’t necessarily expect students to const...