There are 20 sweets in a bag, 5 are white and 15 are black. What is the probability that a sweet chosen at random will be white?
5 out of the 20 sweets in the bag are white. This could be written as 5/20. This is the probability. However, this can be simplified to 1/4 'one quarter' or 0.25.
TD
Related Maths GCSE answers
All answers ▸What's the difference between the mean, median and mode? Why are there so many different types of average?!
In a stack of CDs, there are 3 types: Rock, Pop and Jazz. There are 2 Rock CDs, x Pop CDs, and (2x+5) Jazz CDs. A CD is chosen at random. If the probability it is Rock is 1/20, work out the probability it is Jazz.
All tickets for a concert are at the same price. Amy and Dan pay £63 altogether for some tickets. Amy pays £24.50 for 7 tickets. How many tickets does Dan buy?
Solve the equation x ^2>=3(x + 6)