NECO Mathematics Past Questions & Answers

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1.

Find the value of log\(_{\sqrt{3}}\) 81

A.

81

B.

16

C.

8

D.

3

E.

\(\sqrt{3}\)

Correct answer is C

No explanation has been provided for this answer.

2.

P = {x:(x - 2)(x + 3) (x - 4)(x + 5) = 0}. The elements in P are

A.

-5,-2, 3, 4

B.

-5, -3, 2, 4

C.

-5, -3, -2,4

D.

-4, -3, -2, 5

E.

2, 3, 4, 5

Correct answer is B

No explanation has been provided for this answer.

4.

If 5x - 3 = 4x - 7, what is the value 6x?

A.

24

B.

6

C.

4

D.

-4

E.

-24

Correct answer is E

No explanation has been provided for this answer.

5.

Evaluate (25 × 4-2) ÷ (2-3 × 26)

A.

9

B.

8

C.

3

D.

\(\frac{8}{9}\)

E.

\(\frac{1}{4}\)

Correct answer is E

No explanation has been provided for this answer.

6.

T varies inversely as the square root of F when T = 7, F = 2\(\frac{1}{4}\). Find T when F = \(\frac{27}{9}\)

A.

1.5

B.

6.3

C.

12.6

D.

21

Correct answer is B

No explanation has been provided for this answer.

7.

The graph of cumulative frequency distribution is known as

A.

an ogive

B.

a histogram

C.

a frequency polygon

D.

relative frequency

E.

none

Correct answer is A

No explanation has been provided for this answer.

8.

If A = \(\frac{1}{2}\)h (a + b), make ‘a’ the subject of the formula

A.

(2A – 2bh) ÷ b

B.

(2A – bh) ÷ h

C.

(2A – bh) ÷ b

D.

(A – 2bh) ÷ h

E.

(2A – h) ÷ bh

Correct answer is B

No explanation has been provided for this answer.

9.

The median of a distribution can be estimated from

A.

Barchart

B.

Cumulative frequency curve

C.

Frequency polygon

D.

Pictorial

E.

Pie chart

Correct answer is B

No explanation has been provided for this answer.

10.

Multiply (3\(\sqrt{a}\) - 4a) by (4a + 3\(\sqrt{a}\))

A.

9a + 16a2

B.

9a – 16a2

C.

3a + 16a2

D.

3a - 16a2

E.

a - 16a2

Correct answer is B

No explanation has been provided for this answer.