Skip to content

Course home

Sign up

Probability

EasyMedium
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116
Question 104

A bag contains k k\,k blue counters, 8 red counters and 6 green counters. Two counters are removed from the bag at random.

a.

Find the probability that the two counters removed are both red, giving your answer in terms of kkk.

[2]
b.

Find the probability that the two counters removed are different colours, giving your answer in terms of kkk.

[2]
Markscheme

Probability Questions

  1. A Level
  2. /Maths
  3. /Probability

186 exam-style questions on Edexcel A Level Maths Probability, covering 5.1 Calculating Probabilities, 5.2 Venn Diagrams, 5.3 Mutually Exclusive and Independent Events, and 5.4 Tree Diagrams. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank