NECO SSCE - General Mathematics - 2004 (Objective)

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?

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

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

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

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

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

Detalhes da Resposta

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Probability

Surds (radicals)

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Pergunta 17 Relatório

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

68cm Resposta correta

72cm

80cm

88cm

92cm

Detalhes da Resposta

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Pergunta 18 Relatório

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

-3a

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

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

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

\(\frac{9^2}{4}\) Resposta correta

Detalhes da Resposta

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Number Bases

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Pergunta 19 Relatório

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 Resposta correta

Detalhes da Resposta

Ler a nota de aula em Linear Inequalities (WAEC)

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Ler a nota de aula em Progression (JAMB)

Linear Inequalities

Statistics

Progression

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Pergunta 20 Relatório

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 Resposta correta

6cm

3\(\sqrt{2}\)cm

Detalhes da Resposta

Ler a nota de aula em Angles (WAEC)

Ler a nota de aula em Triangles And Polygons (WAEC)

Angles

Triangles And Polygons

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Pergunta 21 Relatório

Express the quotient of 0.422 and 0.004 in standard form

1.055 × 10² Resposta correta

10.55 × 10¹

105 × 10⁰

10.55 × 10^-1

1.055 × 10^-2

Detalhes da Resposta

Ler a nota de aula em Fractions, Decimals And Approximations (WAEC)

Ler a nota de aula em Modular Arithmetic (WAEC)

Fractions, Decimals And Approximations

Modular Arithmetic

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Pergunta 22 Relatório

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

0.0784

-4

-0.0784 Resposta correta

Detalhes da Resposta

Ler a nota de aula em Logarithms (WAEC)

Logarithms

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Pergunta 23 Relatório

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

005°

095°

185°

265° Resposta correta

275°

Detalhes da Resposta

Ler a nota de aula em Bearings (WAEC)

Bearings

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Pergunta 24 Relatório

Express the product of 0.007 and 0.057 to two significant figures

0.0004 Resposta correta

0.00039

0.004

0.0039

0.04

Detalhes da Resposta

Ler a nota de aula em Fractions, Decimals And Approximations (WAEC)

Ler a nota de aula em Modular Arithmetic (WAEC)

Fractions, Decimals And Approximations

Modular Arithmetic

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Pergunta 25 Relatório

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 Resposta correta

Detalhes da Resposta

Ler a nota de aula em Fractions, Decimals And Approximations (WAEC)

Fractions, Decimals And Approximations

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Pergunta 26 Relatório

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 Resposta correta

12p - 3q

Detalhes da Resposta

Ler a nota de aula em Solution Of Linear Equations (WAEC)

Ler a nota de aula em Quadratic Equations (WAEC)

Solution Of Linear Equations

Quadratic Equations

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Pergunta 27 Relatório

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

7 Resposta correta

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

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

Detalhes da Resposta

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Pergunta 28 Relatório

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

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

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

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

-3

Detalhes da Resposta

Ler a nota de aula em Sequence And Series (WAEC)

Sequence And Series

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Pergunta 29 Relatório

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 Resposta correta

Detalhes da Resposta

Ler a nota de aula em Sequence And Series (WAEC)

Sequence And Series

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Pergunta 30 Relatório

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 Resposta correta

Detalhes da Resposta

Ler a nota de aula em Sequence And Series (WAEC)

Sequence And Series

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Pergunta 31 Relatório

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. Resposta correta

12yrs.

12.5yrs.

Detalhes da Resposta

Ler a nota de aula em Fractions, Decimals And Approximations (WAEC)

Ler a nota de aula em Surds (radicals) (WAEC)

Ler a nota de aula em Financial Arithmetic (WAEC)

Fractions, Decimals And Approximations

Surds (radicals)

Financial Arithmetic

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Pergunta 32 Relatório

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

x varies inversely as y²

x varies inversely as \(\sqrt{y}\) Resposta correta

x varies directly as y²

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

x varies directly as y

Detalhes da Resposta

Ler a nota de aula em Variation (JAMB)

Variation

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Pergunta 33 Relatório

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% Resposta correta

6.60%

6.70%

Detalhes da Resposta

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Pergunta 34 Relatório

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

–x

X-1

–X^-1 Resposta correta

-1

Detalhes da Resposta

Ler a nota de aula em Logarithms (WAEC)

Logarithms

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Pergunta 35 Relatório

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 Resposta correta

2.08m/s

Detalhes da Resposta

Ler a nota de aula em Lengths And Perimeters (WAEC)

Ler a nota de aula em Areas (WAEC)

Lengths And Perimeters

Areas

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