The normal price of a television is £1200. It is reduced to £970. Work out the percentage reduction.
Answer
19.2%
18.7%
19.4%
Question 2
Question
Four numbers have a mean of 10. The median is 8. Two of the numbers are 1 and 5. Work out the other two numbers.
Answer
25
23
21
Question 3
Question
Bag A has 2 black counters and 3 white counters.
Bag B has 3 orange counters and 4 green counters.
A counter is chosen at random from each bag. What is the probability of choosing a black counter and an orange counter? (Multiple correct answers)
Answer
\(\frac{6}{35}\)
0.17
\(\frac{6}{25}\)
Question 4
Question
42 out of 80 animals are dogs. What percentage of the animals are dogs?
Answer
52.5%
19.1%
20.5%
Question 5
Question
There were 17 million families in the UK in 2006. The mean number of children per family was 1.8. How many children were there in the UK?
Answer
4
5
3
Question 6
Question
One combination is soup and curry. How many different combinations are there?
Here are two events:
1. A ticket wins the National Lottery.
2. A fair coin lands on heads five times in a row.
The probability of A happening is 7.15 × \(10\,^8\)
How many more times likely is B than A?
Answer
4.5 x \(10\,^1\)
4.4 x \(10\,^5\)
5.4 x \(10\,^2\)
Question 9
Question
One of the balls is dropped from a height of 2 metres. Each time the ball bounces it reaches – of its previous height.
How high will the ball reach after two bounces?
Answer
\[\frac{1}{3}\]
\[\frac{1}{2}\]
\[\frac{18}{25}\]
Question 10
Question
A company makes 400 Christmas toys. Each toy costs £4.70 to make. One-quarter of the toys are given away to a children’s home. Three-fifths of the rest are sold for the full price of £12. The remainder are sold at half price.
How much profit does the company make?