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?

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

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

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

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

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

Maelezo ya Majibu

Soma maelezo ya somo kwenye Probability (WAEC)

Soma maelezo ya somo kwenye Surds (radicals) (WAEC)

Probability

Surds (radicals)

Tazama Jibu

Swali 25 Ripoti

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 Jibu sahihi

6cm

3\(\sqrt{2}\)cm

Maelezo ya Majibu

Soma maelezo ya somo kwenye Angles (WAEC)

Soma maelezo ya somo kwenye Triangles And Polygons (WAEC)

Angles

Triangles And Polygons

Tazama Jibu

Swali 26 Ripoti

Express the quotient of 0.422 and 0.004 in standard form

1.055 × 10² Jibu sahihi

10.55 × 10¹

105 × 10⁰

10.55 × 10^-1

1.055 × 10^-2

Maelezo ya Majibu

Soma maelezo ya somo kwenye Fractions, Decimals And Approximations (WAEC)

Soma maelezo ya somo kwenye Modular Arithmetic (WAEC)

Fractions, Decimals And Approximations

Modular Arithmetic

Tazama Jibu

Swali 27 Ripoti

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

–x

X-1

–X^-1 Jibu sahihi

-1

Maelezo ya Majibu

Soma maelezo ya somo kwenye Logarithms (WAEC)

Logarithms

Tazama Jibu

Swali 28 Ripoti

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 Jibu sahihi

2.08m/s

Maelezo ya Majibu

Soma maelezo ya somo kwenye Lengths And Perimeters (WAEC)

Soma maelezo ya somo kwenye Areas (WAEC)

Lengths And Perimeters

Areas

Tazama Jibu

Swali 29 Ripoti

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 Jibu sahihi

Maelezo ya Majibu

Soma maelezo ya somo kwenye Sequence And Series (WAEC)

Sequence And Series

Tazama Jibu

Swali 30 Ripoti

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. Jibu sahihi

12yrs.

12.5yrs.

Maelezo ya Majibu

Soma maelezo ya somo kwenye Fractions, Decimals And Approximations (WAEC)

Soma maelezo ya somo kwenye Surds (radicals) (WAEC)

Soma maelezo ya somo kwenye Financial Arithmetic (WAEC)

Fractions, Decimals And Approximations

Surds (radicals)

Financial Arithmetic

Tazama Jibu

Swali 31 Ripoti

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% Jibu sahihi

6.60%

6.70%

Maelezo ya Majibu

Tazama Jibu

Swali 32 Ripoti

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

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

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

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

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

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

Maelezo ya Majibu

Soma maelezo ya somo kwenye Number Bases (WAEC)

Number Bases

Tazama Jibu

Swali 33 Ripoti

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 Jibu sahihi

Maelezo ya Majibu

Tazama Jibu

Swali 34 Ripoti

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

x² - x(2n-m) – 2mn = 0 Jibu sahihi

x² + x(2n - m) - 2mn = 0

x² + x(m - 2n) + 2mn = 0

X² + x (m + 2n ) + 2mn = 0

x² - x (m - 2n) - 2mn = 0

Maelezo ya Majibu

Soma maelezo ya somo kwenye Differentiation (JAMB)

Soma maelezo ya somo kwenye Quadratic Equations (WAEC)

Differentiation

Quadratic Equations

Tazama Jibu

Swali 35 Ripoti

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

10a

12a Jibu sahihi

5abc

12a²bc

60a²bc

Maelezo ya Majibu

Soma maelezo ya somo kwenye Sine, Cosine And Tangent Of An Angle (WAEC)

Soma maelezo ya somo kwenye Number Bases (WAEC)

Soma maelezo ya somo kwenye Modular Arithmetic (WAEC)

Sine, Cosine And Tangent Of An Angle

Number Bases

Modular Arithmetic

Tazama Jibu






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