AFCT Mathematics Knowledge 3

Question 1

What is the value of 2³ × 2⁴?

Accepted Answer

2⁷

Answer

2¹²

Answer

4⁷

Answer

8⁷

Question 2

Which of the following is a prime number?

Accepted Answer

59

Answer

51

Answer

57

Answer

63

Question 3

What is 25% of 80?

Accepted Answer

20

Answer

15

Answer

25

Answer

32

Question 4

If the ratio of a to b is 3:5 and a = 12, what is the value of b?

Accepted Answer

20

Answer

15

Answer

25

Answer

18

Question 5

What is the least common multiple (LCM) of 6 and 8?

Accepted Answer

24

Answer

2

Answer

48

Answer

16

Question 6

Simplify the expression: (x + 2)²

Accepted Answer

x² + 4x + 4

Answer

x² + 4

Answer

x² + 2x + 4

Answer

x² + 2x + 2

Question 7

If a number is increased by 20% and then decreased by 20%, the result is:

Accepted Answer

4% less than the original

Answer

The same as the original

Answer

4% more than the original

Answer

40% less than the original