Mathematics (AS & A Level) · Oct / Nov 2023 · Paper 52 · Question 6
9709
As printed in the paper
The question as text
Freddie has two bags of marbles. Bag X contains 7 red marbles and 3 blue marbles. Bag Y contains 4 red marbles and 1 blue marble. Freddie chooses one of the bags at random. A marble is removed at random from that bag and not replaced. A new red marble is now added to each bag. A second marble is then removed at random from the same bag that the first marble had been removed from.
Read automatically from the paper; the printed page above is exact.
Show the answer and mark scheme
6(a)[3]
6(b)[4]
6(c)[2]
Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.