Intermediate Number Problems
1.
The reading on this petrol pump shows the amount of petrol bought to the nearest 0.01 litre.
19·82
This pump shows that Mr Carr was supplied with 19.82 litres of petrol.
What is
(a)
the minimum amount he could have obtained?
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(1)
(b)
the maximum amount he could have obtained?
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(1)
2.
(a)
There are 14 700 (to the nearest hundred) spectators at a football match.
(i)
What is the least possible number of spectators?
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Answer ....................................................
(1)
(ii)
What is the maximum number of spectators?
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Answer ....................................................
(1)
(b)
The ratio of adults to children visiting a park is 3:5
One day 1740 adults go to the park.
How many children go to the park on that day?
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Answer ....................................................
(2)
Hamilton Community College
1
3.
Mount Everest is 8848 m high to the nearest metre. What is its smallest possible height in
kilometres?
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Answer .................................................................. km
(Total 2 marks)
4.
A book weighs 3.2 kg, given to the nearest 100 g.
Find the minimum possible weight of 6 copies of the same book.
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Answer .........................……….................. kg
(2)
5.
A sport pitch has a length of 75 metres, correct to the nearest metre.
Write down the least and the greatest possible length of this pitch.
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Answer
Least ......................................... metres
Greatest .................................... metres
(2)
6.
George changes £40 into francs.
The exchange rate is 8.96 francs for £l.
How many francs does he get?
Give your answer to the nearest franc.
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Answer ........................................... francs
(3)
Hamilton Community College
2