2702247
Descripción
Test por Andrea Leyden, actualizado hace más de 1 año
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Creado por Andrea Leyden
hace casi 9 años
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Pregunta 1
Pregunta
The normal price of a television is £1200. It is reduced to £970. Work out the percentage reduction.
Respuesta
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19.2%
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18.7%
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19.4%
Pregunta 2
Pregunta
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.
Respuesta
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25
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23
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21
Pregunta 3
Pregunta
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)
Respuesta
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\(\frac{6}{35}\)
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0.17
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\(\frac{6}{25}\)
Pregunta 4
Pregunta
42 out of 80 animals are dogs. What percentage of the animals are dogs?
Respuesta
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52.5%
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19.1%
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20.5%
Pregunta 5
Pregunta
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?
Respuesta
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4
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5
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3
Pregunta 6
Pregunta
One combination is soup and curry. How many different combinations are there?
Respuesta
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9
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4
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6
Pregunta 7
Pregunta
The sections of a fair spinner are red, white or blue. The spinner is spun 40 times. Write down the relative frequency of the spinner landing on red.
Respuesta
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70%
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13%
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14%
Pregunta 8
Pregunta
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?
Respuesta
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4.5 x \(10\,^1\)
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4.4 x \(10\,^5\)
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5.4 x \(10\,^2\)
Pregunta 9
Pregunta
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?
Respuesta
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\[\frac{1}{3}\]
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\[\frac{1}{2}\]
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\[\frac{18}{25}\]
Pregunta 10
Pregunta
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?
Respuesta
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£1,035
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£1,000
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£1,250
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