Pearson Edexcel International GCSE (9–1) · MATHEMATICS A · Unit
Unit 4
104 practice questions
Topics covered
Practice questions
21–30 of 37 · Easy
Question 21
2 marks · Easy
Answer and see the solution →Calculate the size of angle in a right-angled triangle where the side opposite is 7 m and the hypotenuse is 14 m. Give your answer correct to 3 significant figures.
Question 22
3 marks · Easy
Answer and see the solution →PQRS is a rectangle. PQ = 6 cm and QR = 8 cm.
(a)[2 marks]Calculate the length of the diagonal PS.
(b)[1 mark]Work out the perimeter of rectangle PQRS.
Question 23
1 mark · Easy
Answer and see the solution →Explain why the diagonals of a rectangle are always equal in length.
Question 24
2 marks · Easy
Answer and see the solution →A triangle has sides of length 3 cm, 4 cm, and 5 cm. Work out the area of the triangle.
Question 25
2 marks · Easy
Answer and see the solution →The numbers of pens owned by 7 students are listed below:
3, 6, 6, 2, 8, 5, 4
Work out the median number of pens owned.
Question 26
1 mark · Easy
Answer and check →Write down the range of the following data:
5, 12, 8, 3, 10
Question 27
2 marks · Easy
Answer and see the solution →The table shows the number of books read by 8 friends in a month.
Friend Books A 3 B 5 C 4 D 7 E 6 F 4 G 3 H 5 Work out the mode number of books read.
Question 28
1 mark · Easy
Answer and see the solution →A coin is tossed once.
Write down the probability of getting a tail.
Question 29
3 marks · Easy
Answer and see the solution →The marks out of 10 scored by 5 students in a quiz are:
5, 7, 8, 8, 10
For this data:
(a)[1 mark]Write down the mean.
(b)[1 mark]Write down the range.
(c)[1 mark]Write down the mode.
Question 30
1 mark · Easy
Answer and see the solution →In a group, everyone has either 1, 2 or 3 pets. The mean number of pets per person is 2.
Explain, in one sentence, what this tells you about the group.