Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Chapter
Number 6
18 practice questions
Practice questions
1–10 of 18
Question 1
1 mark · Easy
Answer and see the solution →Write as a fraction.
Question 2
1 mark · Easy
Answer and see the solution →Simplify .
Question 3
2 marks · Easy
Answer and see the solution →The taxi fare is directly proportional to the number of miles travelled. The table shows some fares.
Miles Fare (£) 1 2.50 3 ? 5 12.50 Complete the table.
Question 4
1 mark · Easy
Answer and see the solution →Express the relationship 'y is inversely proportional to x' as a formula. Use k for the constant.
Question 5
2 marks · Easy
Answer and see the solution →A machine prints 150 leaflets every 5 minutes. The number of leaflets printed is directly proportional to the time, in minutes, the machine is running.
How many leaflets will be printed in 18 minutes?
Question 6
2 marks · Easy
Answer and see the solution →Express as a fraction.
Question 7
3 marks · Easy
Answer and see the solution →The table shows the total pay (in £) for hours worked at a constant rate. Pay is directly proportional to hours worked.
(a)[1 mark]Hours Total pay (£) 2 24 5 ? 8 96 Complete the missing value in the table.
(b)[1 mark]Write down the formula connecting pay, , and hours worked, . Use the value of the constant you find.
(c)[1 mark]How many hours were worked to earn £60?
Question 8
3 marks · Normal
Answer and see the solution →A piece of rope is 3 1/2 metres long. Each jump rope needs 5/8 metres of rope. How many full jump ropes can be made, and how much rope will be left over? Give your answers as fractions in their lowest terms.
Question 9
3 marks · Normal
Answer and see the solution →The mass m grams of a medicine needed is directly proportional to a patient's mass. A patient who weighs 72 kg requires 24 grams. How much medicine does a patient of 54 kg need? Write a formula relating m to the patient's mass in kg.
Question 10
4 marks · Normal
Answer and see the solution →A factory produces toy cars. The number of workers n and the number of days d to complete an order are inversely proportional. An order takes 36 days with 5 workers.
(a)[2 marks]How many days would it take 9 workers to complete the same order?
(b)[2 marks]Write the formula connecting n and d.