Neco Mathematics Past Questions and Answers

Question 121:

• NECO 2005

Simplify (6 - x - x2) ÷ (x2 - 4)

A. (3 + x) ÷ (x + 2)
B. (x - 3) ÷ (x - 2)
C. (x - 3) ÷ (x + 3)
D. (3 - x) ÷ (x + 2)
E. (3 - x) ÷ (x - 2)

Question 122:

• NECO 2005

Find the absolute mean deviation of the sample 10, 12, 14, 11, 13.

A. 14.6
B. 14
C. 12
D. 6.2
E. 1.2

Question 123:

• NECO 2005

In Δ ABC, A = 60°, C = 90° and AC = 12m. Find the Length of the hypotenuse.

A. 24m
B. 14m
C. 12m
D. 7m
E. 6m

Question 124:

• NECO 2005

For what value(s) of x is the expression (x² + 15x + 50) ÷ (x - 5) not defined

A. -5, -10
B. -10
C. -5
D. 5
E. 10, 5

Question 125:

• NECO 2005

Evaluate log 18 + log⁶ - log16\(^{\frac{1}{2}}\)

A. Log 3
B. Log 9
C. Log 20
D. 3 log 2
E. 3 log 3