Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Unit
Unit 4
104 practice questions
Topics covered
Practice questions
11–20 of 104
Question 11
3 marks · Normal
Answer and see the solution →Manuela invests $1,500 at 3% compound interest per annum for 4 years. Calculate the value of her investment at the end of 4 years. Give your answer to the nearest cent.
Question 12
3 marks · Normal
Answer and see the solution →Complete the following table, giving your answers to the nearest dollar.
Original Value ($) Compound Percentage p.a. Time (years) New Value ($) 700 +5 3 2000 -3 4 Question 13
2 marks · Normal
Answer and see the solution →A phone is sold for £594, which includes a profit of 20%. Explain briefly how to find the original price paid for the phone and state the calculation you would do.
Question 14
2 marks · Normal
Answer and see the solution →Write 5/8 as a decimal.
Question 15
4 marks · Normal
Answer and see the solution →In 2018, the population of a town was 9,000 people. Every year, the population decreases by 2%.
(a)[3 marks]Calculate the population after 3 years. Give your answer to the nearest whole number.
(b)[1 mark]Explain in one sentence why the answer is less than 9,000.
Question 16
4 marks · Hard
Answer and see the solution →A painting is sold for €25,310 after its price first increases by 6% at the end of 1 year and then further increases by 4% at the end of the next year.
(a)[3 marks]Work out the original price of the painting before any increases.
(b)[1 mark]By how much did the price increase in total over the two years? Give your answer to the nearest euro.
Question 17
3 marks · Hard
Answer and see the solution →An antique statue is sold for $7,480 after having lost 30% of its original value. Describe and calculate the steps needed to find the original price of the statue. Give your answer to the nearest dollar.
Question 18
3 marks · Hard
Answer and see the solution →A large TV loses 15% of its value in the first year after purchase, and then loses another 10% of its remaining value in the second year. The TV originally cost $2,400.
(a)[1 mark]Calculate the value of the TV after the first year.
(b)[1 mark]Calculate the value of the TV after the second year.
(c)[1 mark]Calculate the total percentage loss in value over the two years. Give your answer to 1 decimal place.
Question 19
1 mark · Easy
Answer and see the solution →Write down the value of the expression when .
Question 20
1 mark · Easy
Answer and see the solution →Write down whether the following is an expression, an equation, or an identity: .