NECO SSCE - General Mathematics - 2004 (Objective)

Fi silẹ

Ibeere 1 Ìròyìn

Simplify (216\(\frac{1}{3}\))^-2

\(\frac{1}{36}\) Ìdáhùn tó tọ́

\(\frac{1}{18}\)

\(\frac{1}{13}\)

\(\frac{1}{6}\)

\(\frac{1}{3}\)

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Fractions, Decimals And Approximations (WAEC)

Ka ìwé ẹ̀kọ́ nípa Number Bases (WAEC)

Fractions, Decimals And Approximations

Number Bases

Wo Idahun

Ibeere 2 Ìròyìn

A bag Contains 2 red, 3 blue and 4 green identical balls. If two balls are picked at random one after the other without replacement, what is the probability that both are green?

\(\frac{1}{6}\) Ìdáhùn tó tọ́

\(\frac{1}{3}\)

\(\frac{16}{18}\)

\(\frac{3}{8}\)

\(\frac{4}{9}\)

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Probability (WAEC)

Ka ìwé ẹ̀kọ́ nípa Surds (radicals) (WAEC)

Probability

Surds (radicals)

Wo Idahun

Ibeere 3 Ìròyìn

Evaluate (Log₁₃ - log₅) ÷ X(log₅-log₁₃) without using tables

–x

X-1

–X^-1 Ìdáhùn tó tọ́

-1

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Logarithms (WAEC)

Logarithms

Wo Idahun

Ibeere 4 Ìròyìn

Evaluate ut - \(\frac{1}{2}\)ft² when t = 5, u = -20 and f = 10

225

-75

-125

-225 Ìdáhùn tó tọ́

Awọn alaye Idahun

Wo Idahun

Ibeere 5 Ìròyìn

The 4th term of a G.P is 3 and its first term is 81. What is its common ratio?

\(\frac{2}{3}\)

\(\frac{1}{3}\) Ìdáhùn tó tọ́

-\(\frac{1}{3}\)

-3

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Sequence And Series (WAEC)

Sequence And Series

Wo Idahun

Ibeere 6 Ìròyìn

Evaluate \(1011_{two}\) + \(1101_{two}\) + \(1001_{two}\) - \(111_{two}\)

10001\(_{two}\)

11001\(_{two}\)

110001\(_{two}\)

11010\(_{two}\) Ìdáhùn tó tọ́

11100\(_{two}\)

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Number Bases (WAEC)

Ka ìwé ẹ̀kọ́ nípa Number Bases (JAMB)

Number Bases

Wo Idahun

Ibeere 7 Ìròyìn

A bag contains p dozens of bananas and 3q of these proved to be bad. If I buy one third of the goods ones, how many do I get?

P -3q

\(\frac{1}{3}\) (p - 3q)

4p - q Ìdáhùn tó tọ́

12p - 3q

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Solution Of Linear Equations (WAEC)

Ka ìwé ẹ̀kọ́ nípa Quadratic Equations (WAEC)

Solution Of Linear Equations

Quadratic Equations

Wo Idahun

Ibeere 8 Ìròyìn

If the first term of an AP is 1.2 and the common difference is also 2, what is the mean of the first five terms?

6 Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Sequence And Series (WAEC)

Sequence And Series

Wo Idahun

Ibeere 9 Ìròyìn

If y varies inversely as x², how does x vary with y?

x varies inversely as y²

x varies inversely as \(\sqrt{y}\) Ìdáhùn tó tọ́

x varies directly as y²

x varies directly as \(\sqrt{y}\)

x varies directly as y

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Variation (JAMB)

Variation

Wo Idahun

Ibeere 10 Ìròyìn

Find the value of t such that the expression \(\frac{1}{t}\) + \(\frac{4}{3}\) - \(\frac{5}{6t}\) + 1 is equal to zero

\(\frac{1}{6}\)

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

- \(\frac{3}{2}\) Ìdáhùn tó tọ́

\(\frac{7}{6}\)

\(\frac{2}{5}\)

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Number Bases (WAEC)

Number Bases

Wo Idahun

Ibeere 11 Ìròyìn

If log₁₀² = 0.3010 and log₁₀³ = 0.4771, simplify: (Log₁₀⁸-log₉²) ÷ (Log₁₀⁹ - log₁₀²)

0.0784

-4

-0.0784 Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Logarithms (WAEC)

Logarithms

Wo Idahun

Ibeere 12 Ìròyìn

The angle subtended by a diameter of a circle at the circumference is a/an

acute angle

obtuse angle

reflex angle

right angle Ìdáhùn tó tọ́

supplementary angle

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Circles (WAEC)

Circles

Wo Idahun

Ibeere 13 Ìròyìn

The expression 4x² - 4 has the following as its factors EXCEPT

x - 1

x + 1

x² -1

4x + 1 Ìdáhùn tó tọ́

4x - 4

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Algebraic Expressions (WAEC)

Ka ìwé ẹ̀kọ́ nípa Quadratic Equations (WAEC)

Algebraic Expressions

Quadratic Equations

Wo Idahun

Ibeere 14 Ìròyìn

If cos x = 4/5, 0° \( \leq \) x \( \leq \) 90°, find the value of (1 + tan x)/(1 - tan x)

7 Ìdáhùn tó tọ́

\(\frac{7}{16}\)

\(\frac{9}{25}\)

Awọn alaye Idahun

Wo Idahun

Ibeere 15 Ìròyìn

Find the surface area of a sphere whose radius is 3.5cm, correct your answer to one decimal place (π = \(\frac{22}{5}\))

12.8cm²

25.7cm²

77.0cm²

154.0cm² Ìdáhùn tó tọ́

179.7cm²

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Volumes (WAEC)

Volumes

Wo Idahun

Ibeere 16 Ìròyìn

What must be added to b²-3ab to make it a perfect square?

-3a

-\(\frac{3}{2}\)

\(\frac{9}{4}\)

\(\frac{9a}{4}\)

\(\frac{9^2}{4}\) Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Number Bases (WAEC)

Number Bases

Wo Idahun

Ibeere 17 Ìròyìn

Divide the LCM of 15abc and 20a\(^2\)bc by their HCF

10a

12a Ìdáhùn tó tọ́

5abc

12a²bc

60a²bc

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Sine, Cosine And Tangent Of An Angle (WAEC)

Ka ìwé ẹ̀kọ́ nípa Number Bases (WAEC)

Ka ìwé ẹ̀kọ́ nípa Modular Arithmetic (WAEC)

Sine, Cosine And Tangent Of An Angle

Number Bases

Modular Arithmetic

Wo Idahun

Ibeere 18 Ìròyìn

If the mean of the following set of data, 2, 3,3,3, 2,4 4 and 3 is divided by its mode, the result is:

1 Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Linear Inequalities (WAEC)

Ka ìwé ẹ̀kọ́ nípa Statistics (WAEC)

Ka ìwé ẹ̀kọ́ nípa Progression (JAMB)

Linear Inequalities

Statistics

Progression

Wo Idahun

Ibeere 19 Ìròyìn

The roots of a quadratic equation in x, are -m and 2n. Fine equation.

x² - x(2n-m) – 2mn = 0 Ìdáhùn tó tọ́

x² + x(2n - m) - 2mn = 0

x² + x(m - 2n) + 2mn = 0

X² + x (m + 2n ) + 2mn = 0

x² - x (m - 2n) - 2mn = 0

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Differentiation (JAMB)

Ka ìwé ẹ̀kọ́ nípa Quadratic Equations (WAEC)

Differentiation

Quadratic Equations

Wo Idahun

Ibeere 20 Ìròyìn

The bearing of Y from X is 0850. What is the bearing of X from Y?

005°

095°

185°

265° Ìdáhùn tó tọ́

275°

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Bearings (WAEC)

Bearings

Wo Idahun

Ibeere 21 Ìròyìn

Four pupils have an average age of 12years and two other pupils of average age of 10.5years are added. What is the average age of the six pupils?

10.5yrs.

11yrs.

11.5 yrs. Ìdáhùn tó tọ́

12yrs.

12.5yrs.

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Fractions, Decimals And Approximations (WAEC)

Ka ìwé ẹ̀kọ́ nípa Surds (radicals) (WAEC)

Ka ìwé ẹ̀kọ́ nípa Financial Arithmetic (WAEC)

Fractions, Decimals And Approximations

Surds (radicals)

Financial Arithmetic

Wo Idahun

Ibeere 22 Ìròyìn

Find x if (x - 2)² = 1\(\frac{7}{9}\)

\(\frac{2}{3}\) or \(\frac{2}{7}\)

3\(\frac{1}{3}\) or \(\frac{2}{3}\) Ìdáhùn tó tọ́

3\(\frac{7}{9}\) or \(\frac{2}{7}\)

3\(\frac{1}{3}\) or \(\frac{7}{9}\)

\(\frac{3}{7}\) or \(\frac{2}{9}\)

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Quadratic Equations (WAEC)

Quadratic Equations

Wo Idahun

Ibeere 23 Ìròyìn

The nth term of a sequence is given as 4 x 3(3 - n). Calculate the third term.

4 Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Sequence And Series (WAEC)

Sequence And Series

Wo Idahun

Ibeere 24 Ìròyìn

The first term of an A.P is equal to thrice the common difference, what is the sixth term of the A.P, if the common difference is 8?

64 Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Sequence And Series (WAEC)

Sequence And Series

Wo Idahun

Ibeere 25 Ìròyìn

The diagonals of a rhombus are 16cm and 30cm long. What is the perimeter of the rhombus

68cm Ìdáhùn tó tọ́

72cm

80cm

88cm

92cm

Awọn alaye Idahun

Wo Idahun

Ibeere 26 Ìròyìn

Solve the equation: \(\frac{3}{[2(x - 2)]} - \frac{2}{[3(2 - x)]} = 0\)

2 Ìdáhùn tó tọ́

\(\frac{3}{2}\)

\(\frac{2}{3}\)

-3

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Solution Of Linear Equations (WAEC)

Ka ìwé ẹ̀kọ́ nípa Algebraic Fractions (WAEC)

Ka ìwé ẹ̀kọ́ nípa Fractions, Decimals, Approximations And Percentage (JAMB)

Solution Of Linear Equations

Algebraic Fractions

Fractions, Decimals, Approximations And Percentage

Wo Idahun

Ibeere 27 Ìròyìn

A car travels at an average speed of 75km/h. Find its speed in metres per second.

270m/s

208m/s

27.0m/s

20.8m/s Ìdáhùn tó tọ́

2.08m/s

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Lengths And Perimeters (WAEC)

Ka ìwé ẹ̀kọ́ nípa Areas (WAEC)

Lengths And Perimeters

Areas

Wo Idahun

Ibeere 28 Ìròyìn

Find the area of a triangle ABC such that a = 16cm, b = 14cm, c = 12cm, leave your answer in surd form

5\(\sqrt{15}\)cm²

7\(\sqrt{15}\)cm²

21\(\sqrt{3}\)cm²

21\(\sqrt{5}\)cm²

21\(\sqrt{15}\)cm² Ìdáhùn tó tọ́

Awọn alaye Idahun

Wo Idahun

Ibeere 29 Ìròyìn

Calculate (0.05 × 0.025) ÷ (4.25 × 3.35) and express your answer in standard form

8.7796 × 10⁵

8.7796 × 10⁴

8.7796 × 10³

8.7796 × 10^-3

8.7796 × 10^-5 Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Fractions, Decimals And Approximations (WAEC)

Fractions, Decimals And Approximations

Wo Idahun

Ibeere 30 Ìròyìn

A sales boy gave a change of N75.00 to a buyer instead of N80.00, calculate his percentage error, correct to one decimal place?

6.00%

6.20%

6.30% Ìdáhùn tó tọ́

6.60%

6.70%

Awọn alaye Idahun

Wo Idahun

Ibeere 31 Ìròyìn

Express the quotient of 0.422 and 0.004 in standard form

1.055 × 10² Ìdáhùn tó tọ́

10.55 × 10¹

105 × 10⁰

10.55 × 10^-1

1.055 × 10^-2

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Fractions, Decimals And Approximations (WAEC)

Ka ìwé ẹ̀kọ́ nípa Modular Arithmetic (WAEC)

Fractions, Decimals And Approximations

Modular Arithmetic

Wo Idahun

Ibeere 32 Ìròyìn

Express the product of 0.007 and 0.057 to two significant figures

0.0004 Ìdáhùn tó tọ́

0.00039

0.004

0.0039

0.04

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Fractions, Decimals And Approximations (WAEC)

Ka ìwé ẹ̀kọ́ nípa Modular Arithmetic (WAEC)

Fractions, Decimals And Approximations

Modular Arithmetic

Wo Idahun

Ibeere 33 Ìròyìn

One of the interior angles of a regular polygon is 120°. Find the number of sides of the polygon

6 Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Triangles And Polygons (WAEC)

Triangles And Polygons

Wo Idahun

Ibeere 34 Ìròyìn

Two angles of a triangle are 450 each and its longest side is 12cm. Find the length of one of the other sides

12cm

9\(\sqrt{2}\)cm

6\(\sqrt{2}\)cm Ìdáhùn tó tọ́

6cm

3\(\sqrt{2}\)cm

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Angles (WAEC)

Ka ìwé ẹ̀kọ́ nípa Triangles And Polygons (WAEC)

Angles

Triangles And Polygons

Wo Idahun

Ibeere 35 Ìròyìn

A man is 40m from the foot of a cliff of height 23m. Calculate the angle of elevation of the top of the cliff from the man

50° 54′

35° 06′

30° 00′

290 90′

29° 54′ Ìdáhùn tó tọ́

Awọn alaye Idahun

Ka ìwé ẹ̀kọ́ nípa Angles Of Elevation And Depression (WAEC)

Angles Of Elevation And Depression

Wo Idahun






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