Y10 GCSE Maths Revision 2

What is the area of this sector to 1 decimal place, in $cm^2$ ?

• 50.2

• 8.4

• 201.1

• 33.5

How many square metres in total surface area of a cylinder with a radius of 50cm and length of 2m?

• 7.9

• 4.7

• 1.6

• 6.3

Each side of a square measures 5cm to the nearest centimetre. What is the lower bound for the perimeter?

• 4.5cm

• 5.4cm

• 18cm

• 20cm

Seven students take a test. The mean mark was 23. Another student takes the test and now the mean mark is 25. What was the final student's mark?

• 16

• 39

• 31

• 35

What is the equation of the line of reflection for this triangle?

• x = -2

• y = -2

• y = -2x

• y-axis

A ship travels due east. What is its bearing?

• $90\degree$

• $090\degree$

• $270\degree$

• $0270\degree$

Solve the simultaneous equations:

2x + y = 8

x = 7 + y

• x = 2, y = 2

• x = 1, y = 6

• x = 5, y = -2

• x = 1, y = -6

What is the greatest integer that satisfies the inequality 3x + 1 < 7 ?

Solve $3x^3-27x=0$  

• x = 3

• x = -3

• x = 0

• All of the above

I have a fair, 4-colour spinner split into quarters. What is the probability of spinning the same colour twice (in two spins)?

• 1/4

• 1/2

• 1/8

• 1/16