Neco Mathematics 2005 Past Questions and Answers

Question 1:

• NECO 2005

If a = {x : 1 < x < 9} ; b = {x : 0 < x < 9} ; C = {x : 2 x < 9} and a, b, c U, what are the elements in U?

A. U = {-1 < x < 9}
B. U = {0 < x < 9}
C. U = {1 < x < 9}
D. U = {1 < x < 10}
E. {2 < x < 10}

Question 2:

• NECO 2005

If log 3 = 0.4771 and log 2 = 0.3010, what is the value of log 12?

A. 0.0432
B. 0.4322
C. 1.0791
D. 1.2552
E. 1.5225

Question 3:

• NECO 2005

If 7 is subtracted from twice a certain number x, the result is at most 5. What is the range of the number?

A. X < 2
B. X < 3
C. X < 4
D. X < 5
E. X < 6

Question 4:

• NECO 2005

Find the standard deviation of the numbers 6, 9, 10, 8 and 7

A. 1.4
B. 2
C. 2.4
D. 5
E. 8

Question 5:

• NECO 2005

Simplify P^-6 × P³ × P² ÷ P⁴ × P⁰

A. P⁵
B. P⁴
C. P³
D. P^-3
E. P^-5