Ratio Exam Questions - Web Maths



Ratio Exam Questions

(a) In a primary school the ratio of boys to girls is 7 : 8

For each statement write down whether it is

D Definitely true C Could be true F False

(i) The number of boys in the school is 49 ..................

(ii) The fraction of boys in the school is ⅞ ..................

(iii) The fraction of girls in the school is 8/15 .................. (3 marks)

(b) In a secondary school the ratio of boys to girls is 10 : 11

There are 830 boys in the school. How many girls are there in the school?

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Answer ...................................................................... (2 marks)

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The weight of a 2p coin is 7 g.

Find the weight of £10 worth of 2p coins. Give your answer in kilograms.

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Answer ....................................................... kilograms (4 marks)

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The table shows some exchange rates.

[pic]

Joanne buys a camera in America and pays 200 dollars. Jack buys a similar camera in Japan and pays 20 370 yen. In which country is the camera cheaper and by how much?

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Answer Country .................................................................................

Amount ................................................................................. (4 marks)

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Alex and Ben share £520 in the ratio 1 : 3

(a) How much does Ben receive?

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Answer £ ..................................................................... (2 marks)

(b) What percentage of the £520 does Ben receive?

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Answer .................................................................... % (2 marks)

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