WJEC GCSE Numeracy Unit 2: Calculator-allowed Intermediate June 2017 question paper 3310U40-1

Bus timetable from Orme Station to Outlet Village

Only 55 minutes from Orme Station direct to Outlet Village.

Buses leave the station

• every 12 minutes from 8 a.m. until 12 noon

• every 24 minutes from 12 noon until 10 p.m.

At what time does the first bus after 09:00 leave Orme Station?

Circle your answer.

09:05 09:12 09:18 09:24 09:30

Gwil looks at the timetable shown above. He decides to take the latest possible bus to be at Outlet Village by 15:00.

At what time will Gwil arrive at Outlet Village?

You must show all your working.

Luigi lives in south Wales.

Rosina lives in west Wales. For each of the first 65 days of 2017, they recorded whether or not it rained.

Luigi recorded that it rained on 28 of these days. Rosina recorded that it rained on 40% of these 65 days.

Luigi says,

‘For the first 65 days of 2017, there were more days with rain where I live than where Rosina lives.’

Is Luigi correct?

You must show all your working.

About what percentage of the members at Hadon’s Gym are children?

Circle your answer.

10% 20% 30% 40% 50%

Which of the following is the best estimate for the percentage of the members at Workout Palace who are women?

Circle your answer.

25% 28% 30% 32% 38%

Tomos says, ‘There are more men with membership at Hadon’s Gym than at Workout Palace.’ Is Tomos certain to be correct?

You must give a reason for your answer.

A group of friends measured the heights and masses of their pets.

The scatter diagram shows the results.

Mass (kg)

Describe the correlation shown by this scatter diagram.

The friends notice that the tallest pet has the same mass as another pet.

What is the height of this other pet?

Glenda plans to drive from Flint to Cardiff.

On a long journey, her average speed is usually 42 mph. Last time she drove from Flint to Cardiff it took her 3 hours.

Use this information to calculate the distance between Flint and Cardiff.

Give a possible reason why your answer in (a) is only an estimate of the distance between

Flint and Cardiff.

Gustav is making some scones for his sister’s birthday party.

Recipe to make 12 scones

450 g self raising flour 2 teaspoons of baking powder 75 g butter 50 g caster sugar 2 eggs 225 ml milk

Bake at 428°F for 10 to 15 minutes

How much self raising flour will Gustav need to make 30 scones?

Circle your answer.

900 g 1000 g 1100 g 1125 g 1350 g

In the recipe, the temperature of the oven is given in degrees Fahrenheit, F. The temperature gauge on Gustav’s oven shows degrees Celsius, C.

The formula below is used to convert Fahrenheit into Celsius.

At what temperature should Gustav bake the scones?

Give you answer in degrees Celsius.

Gustav also makes a birthday cake for his sister. The top face of the cake is in the shape of a trapezium.

Gustav plans to ice the top face of the cake. Each packet of icing costs £1.35 and is enough to cover 65 cm². He has to buy complete packets of icing.

Calculate the area of the top face of the cake Gustav has made.

How much will it cost Gustav to ice the top face of the cake?

You must show all your working.

Alun has made his own conversion graph to change knots to miles per hour.

Use Alun’s conversion graph to write 150 knots in miles per hour.

Nikita thinks Alun’s conversion graph may be inaccurate.

Nikita knows that 1000 knots is 1150.779 miles per hour, correct to 3 decimal places.

Convert 20 knots to miles per hour • using Alun’s conversion graph, and then • using Nikita’s values.

Calculate the difference, in miles per hour, between your answers. Give your answer correct to 2 decimal places.

You must show all your working.

Miss Rashud gave her Year 9 French class a test on Wednesday. She asked her class to spell 12 different words.

She displays the results as shown below.

How many pupils scored more than 9 in the test?

How many pupils are there in Miss Rashud’s French class?

What assumption have you made in answering part (ii)?

Miss Rashud also gave the same test to her Year 10 French class on Wednesday. She asked her class to spell the same 12 words.

She displays the results as shown opposite.

Leon says, ‘By looking at the Year 10 graph, I think there is very little difference between the mode and the mean for these scores.’

Without calculating the mean, explain whether Leon is correct or not.

Catrin looks at the two sets of data Miss Rashud has displayed. She says, ‘Year 10 are better at spelling than Year 9.’ Is Catrin’s statement correct?

You must give values to support your answer.

Organics4U is planning to have its headquarters in Wales.

Here are the instructions that Ffion has been given by her manager.

‘Find the point that is

On the map below, shade the region, in Wales, that Ffion should identify for her

In this part of the question, you will be assessed on the quality of your organisation, communication and accuracy in writing.

Organics4U has 16 vehicles on the road every working day. The company has 6 vans and 10 trucks.

Ffion has the following information for each type of vehicle.

The fuel used by all of the 16 vehicles costs £1.10 per litre. Use this information to calculate the total fuel bill for 1 working day.

You must show all your working.

Mali’s scooter depreciated (decreased) in value by 24% in the first year.

In all further years, her scooter depreciated by 13% of its previous year’s value. She originally paid £850 for her scooter.

Calculate the value of Mali’s scooter after 7 years.

After 7 years, the value of Mali’s scooter was £_........

Sanjay stacks three boxes in a pile.

The heights of the boxes are 25 cm, 36 cm and 47 cm. They are all measured correct to the nearest centimetre.

What is the greatest possible height of the stack of the three boxes?

Greatest possible height of the stack of three boxes is_........ cm

Ursula is lying on her surfboard 180 metres away from the foot of a vertical cliff. The height of the cliff is 146 metres.

Ursula was told that if the angle of elevation of the top of the cliff from her lying position is between 42° and 45°, it is safe for her to attempt to stand on her surfboard. Calculate the angle of elevation of the top of the cliff from Ursula’s position lying on her surfboard. State whether it is • safe for Ursula to attempt to stand, or • not safe as she is too near the cliff, or

• not safe as she is too far out at sea.

Marta buys a new television.

Marta wants to fit the television in a bookcase on the wall. In the shop she forgot to write down the length of the television. She did write down the height and the diagonal of the screen.

Marta needs to know the length of the screen before she opens the box, in case she wants to return the television. Calculate the length of the screen.

Give your answer correct to 2 significant figures.

Length is_{………........ ………………} inches, correct to 2 significant figures.

The television was reduced in the sale by 26% of its original price. It cost Marta £710.40 in the sale.

What was the original price of the television?

A television uses 1 unit of electricity every 10 hours. A unit of electricity costs 9.8 p.

Calculate the cost of having a television turned on for 24 hours.

Circle your answer.

£23.52 £2.35 40.83 p 23.52 p 2.45 p

On average, Marta watches 4 hours of television each day. On average, how much a week does it cost her to watch television?

Circle your answer.

27.44 p £27.44 £39.20 39.2 p 10.78 p

Elin’s old fish tank is leaking.

This old fish tank is in the shape of a cuboid. The base of this tank measures 60 cm by 40 cm. Before the leak, the height of the water level in Elin’s old fish tank was 45 cm.

Elin decides to replace her fish tank with a cylindrical one.

She selects a new cylindrical fish tank that has a radius of 25 cm and a height of 70 cm.

Will all the original contents, including the water and the fish, fit into this cylindrical tank?

You must show all your working.

Simon plans to make gloves.

One morning, Simon decided to carry out a survey to find the mean hand span of people in Wales.

He decided to sample systematically. He decided to sample from the first 240 people who pass him in the street during the morning.

He wanted to take 20 people’s hand span measurements.

Explain how Simon could use systematic sampling to obtain 20 measurements.

Yesterday morning, Simon only managed to sample 10 people. He calculated the mean hand span of these 10 people to be 22.8 cm. Yesterday afternoon, Simon recorded the hand spans of a further 20 people. The results for these 20 people are shown in the frequency table below.

Calculate an estimate of the mean of all 30 hand spans that Simon measured

yesterday.

What could Simon do to improve his estimate of the mean hand span of people in

Wales?