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Student finds x, x refuses to elaborate★Paper 1 still non-calculator, nation in shock★Local teen shows working, examiner weeps with joy★Student finds x, x refuses to elaborate★Paper 1 still non-calculator, nation in shock★Local teen shows working, examiner weeps with joy★
Water is poured into the bowl at a rate of 325 cm3 per second for 8 seconds. Does the water fill more than 70% of the bowl? You must show your working.
Water is poured into the bowl at a rate of 325 cm3 per second for 8 seconds. Does the water fill more than 70% of the bowl? You must show your working.
Some gamers were asked which type of video game they preferred. 65% said Action. 19% said Role-playing. The rest said Sports. What percentage said Sports?
For the first match, 40 000 tickets are sold. Assume that each ticket costs £38.50 Work out the total amount of money from ticket sales for this match.
[2]
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(b)
In fact, for the first match, some of the tickets cost less than £38.50 and some of the tickets cost more than £38.50 What does this mean about the total amount of money from ticket sales for this match? Tick one box.
[1]
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(c)
For the second match, the number of tickets sold increases from 40 000 to 55 000 Is the increase in tickets sold more than 35% ? You must show your working.
Fred bought an apartment for £137 500 He made 8% profit when he sold the apartment. He used all of this profit to pay 40% of the deposit on a house. The deposit was one sixth of the price of the house. Work out the price of the house.
Shona has 14 dresses. 50% of these dresses are red. She gives 5 of her red dresses to a charity shop. She buys 1 new red dress. What percentage of the dresses she has now are red?
The people at a party are either adults or children.
What percentage are adults?
[2]
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(b)
The people at a different party are from Spain, France or Germany. 68% are from Spain number from France = number from Germany Work out number from Spain: number from France Give your answer in the form n: 1
A company makes and sells boxes of washing powder.
The company wants to increase the amount of money it receives per kg of powder. To get the required increase it can increase the price to £5.88 or reduce the mass of powder in the box by x % Work out the value of x to 2 decimal places.
At a country park there is a house, a museum and a garden. The table shows the prices per person to visit the park.
Price per person
Garden only
Free
House and museum
£12.50
House only
£8
Museum only
£7
One day, 480 people visit the park. 67 visit the garden only. 40% visit the house and the museum. visit the house only. The rest visit the museum only. In total, how much do the 480 people pay to visit the park? You may use the Venn diagram to help you.
At a country park there is a house, a museum and a garden. The table shows the prices per person to visit the park.
Price per person
Garden only
Free
House and museum
£12.50
House only
£8
Museum only
£7
One day, 480 people visit the park. 67 visit the garden only. 40% visit the house and the museum. visit the house only. The rest visit the museum only. In total, how much do the 480 people pay to visit the park? You may use the Venn diagram to help you.
Alex and Bev sat six tests, each with 50 marks. The table shows their mean percentages after five tests.
Alex
60%
Bev
52%
After all six tests, their mean percentages were equal. In the sixth test, Alex scored 24 out of 50 Work out Bev’s score, out of 50, in the sixth test.
On a restaurant menu there are 22 main dishes, of which are gluten-free 7 rice dishes, which are all gluten-free 5 naan breads, of which 40% are gluten-free. This Meal Deal is on the menu. Choose one main dish, one rice dish and one naan bread How many of the possible Meal Deals are totally gluten-free?
Single tickets Adult £48 Child £26 Special offer tickets 1 adult and 2 children £82 2 adults and 2 children £120
(a)
Freya buys tickets for 3 adults and 4 children. She pays the cheapest possible total cost. How much does she save compared to buying all single tickets?
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(b)
Leroy buys 5 single adult tickets. He uses a voucher that reduces the price of tickets by a quarter. In total, how much does he pay?
The length decreases by 15% The width decreases by 10% Sue says, ‘‘The perimeter decreases by 25% because 15% + 10% is 25%’’ Is she correct? You must show calculations to support your answer.
The length decreases by 15% The width decreases by 10% Sue says, ‘‘The perimeter decreases by 25% because 15% + 10% is 25%’’ Is she correct? You must show calculations to support your answer.
Tom is tiling a wall. He needs to buy at least 100 tiles. The tiles are sold in large packs and small packs.
Large pack 40 tiles £18 Small pack 28 tiles £14 Special offer 25% reduction when you buy 3 or more large packs
Work out the cheapest cost for Tom to buy the packs of tiles he needs.
[3]
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(b)
Tom is also tiling a floor. The floor is a rectangle with length 600 cm and width 240 cm Each tile is a square with side 40 cm Tom uses this method to work out the number of tiles he needs.
Number of tiles that will fit along the width = 240 ÷ 40 = 6 Total number of tiles needed = 15 + 6
In a choir there are 35 men and 48 women. The probability that a man chosen at random wears glasses is The probability that a woman chosen at random wears glasses is
(a)
Work out the number of people in the choir who wear glasses.
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(b)
A person is chosen at random from the choir. Work out the probability that the person does not wear glasses.
Also involves
Ratio, proportion and rates of change ·
Area and perimeter
Reveal mark scheme
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(a)
Tom is tiling a wall. He needs to buy at least 100 tiles. The tiles are sold in large packs and small packs.
Large pack 40 tiles £18 Small pack 28 tiles £14 Special offer 25% reduction when you buy 3 or more large packs
Work out the cheapest cost for Tom to buy the packs of tiles he needs.
[3]
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(b)
Tom is also tiling a floor. The floor is a rectangle with length 600 cm and width 240 cm Each tile is a square with side 40 cm Tom uses this method to work out the number of tiles he needs.
Number of tiles that will fit along the width = 240 ÷ 40 = 6 Total number of tiles needed = 15 + 6
When you earn money you pay income tax. The amount you pay depends on how much you earn that year. You pay 0% on the first £12 500 you earn 20% on the next £37 500 you earn 40% on the next £112 500 you earn. One year, Kim paid £9260 income tax. Work out how much she earned that year.
There are 135 passengers on a plane. 3 of the passengers in Business Class are flying for the first time. In total, there are 15 passengers in Business Class. of the passengers not in Business Class are flying for the first time.
(a)
In the Venn diagram, ξ = passengers on the plane B = passengers in Business Class F = passengers flying for the first time. Complete the Venn diagram.
[4]
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(b)
One of the passengers is chosen at random. Write down the probability that the passenger is in Business Class.
A factory makes kettles. Four samples of kettles are tested for faults. Each sample has size 200 Here are the relative frequencies of faulty kettles in the samples.
Sample
P
Q
R
S
Relative frequency
0.03
0.035
0.015
0.01
Work out the range of the number of faulty kettles in the four samples.
Hanif makes green paint by mixing blue paint and yellow paint in the ratio blue: yellow = 7: 3 He buys blue paint in 50-litre containers, each costing £225 He buys yellow paint in 20-litre containers, each costing £80 He wants to sell the green paint in 5-litre tins make 40% profit on each tin. How much should he sell each tin for?
A charity sends an appeal letter to 3000 people. The letter asks for a donation of money. Here is some information about the last appeal letter the charity sent out.
(a)
Using this information, work out the amount the charity can expect to receive from this appeal.
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(b)
The average donation from the people who filled in a tax form was more than £8.60 How does this affect your answer to part (a)? Tick one box.
Lunch Choose one starter and one main course There are four starters and ten main courses to choose from. Two of the starters and three of the main courses are suitable for vegans. What percentage of the possible lunches have both courses suitable for vegans?
A company sells houses. The line graph shows the number sold per week for 30 weeks.
(a)
Work out the range of the number of houses sold per week.
[2]
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(b)
Work out the median number of houses sold per week.
[2]
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(c)
The company sells three houses. The prices are £185 000, £239 000 and £136 000 The company earns 2% commission on each house. In total, how much commission does the company earn on these three houses?
The table shows information about the population of a city.
Population in 2001
Population in 2011
420 000
480 000
Liam claims, “From 2011 to 2021 the population of the city will increase by the same percentage as from 2001 to 2011” He works out, population increase from 2001 to 2011 = 480 000 – 420 000 = 60 000 population in 2021 = 480 000 + 60 000 = 540 000 Does the population of 540 000 match his claim? You must show your working.
The table shows information about the population of a city.
Population in 2001
Population in 2011
420 000
480 000
Liam claims, “From 2011 to 2021 the population of the city will increase by the same percentage as from 2001 to 2011” He works out, population increase from 2001 to 2011 = 480 000 – 420 000 = 60 000 population in 2021 = 480 000 + 60 000 = 540 000 Does the population of 540 000 match his claim? You must show your working.
A takeaway sells 10-inch pizzas and 12-inch pizzas. Here is some information about the numbers sold in two weeks.
(a)
In each week a proportion of the pizzas sold were 10-inch. In which week was this proportion greater? Show working to support your answer.
[2]
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(b)
The table shows the profit or loss the takeaway makes on each pizza.
Normal price Offer price
10-inch
£3.74 profit 51p loss
12-inch
£5.29 profit 4p loss
In week 1 the total profit was £1895.55 At the end of week 1 the takeaway spent £175 on adverts. Was the increase in profit in week 2 more than the cost of the adverts? You must show your working.
Investment A Save £150 per month for 2 years. 2.5% interest is added to the total amount saved. Investment B Invest £3500 Compound interest is added at 3% per year. After 2 years, how much more is investment B worth than investment A?
A train has 1 first-class carriage and 6 standard carriages. The first-class carriage has 64 seats.
Each standard carriage has 78 seats. in each carriage are being used. Are more than half the seats on the train being used? You must show your working.
Billy wants to buy these tickets for a show. 4 adult tickets at £15 each 2 child tickets at £10 each A 10% booking fee is added to the ticket price. 3% is then added for paying by credit card. Work out the total charge for these tickets when paying by credit card.
P is a rectangle with length 50 cm and width x cm Q is a rectangle with width y cm Not drawn accurately
The length of Q is 20% more than the length of P. The area of Q is 10% less than the area of P. Work out the ratio x: y Give your answer in its simplest form.