NECO SSCE - General Mathematics - 2002…

Frage 1 Bericht

The angle of elevation of the top (T) of a palm tree from a point (R) on the ground is 30°. The distance from R to the base (B) of the palm tree is 120m. What is the distance between T and R?

60m

60\(\sqrt{3}\)m

80\(\sqrt{3}\)m Richtige Antwort

120\(\sqrt{3}\)m

240m

Antwortdetails

Lies die Unterrichtsnotiz zu Angles Of Elevation And Depression (WAEC)

Angles Of Elevation And Depression

Antwort anzeigen

Frage 2 Bericht

When a shirt is sold for N12000.00, a loss of 20% is recorded. How much should it be sold for to gain 20%?

N4800.00

N400

N1800.00 Richtige Antwort

N1500.00

N960.00

Antwortdetails

Lies die Unterrichtsnotiz zu Modular Arithmetic (WAEC)

Lies die Unterrichtsnotiz zu Financial Arithmetic (WAEC)

Modular Arithmetic

Financial Arithmetic

Antwort anzeigen

Frage 3 Bericht

A boy leaves station X on a bearing of 035° to station y which is 21km away. He then travels to another station Z on a bearing of 125°. If Z is directly East of X, what is the distance from X to his present position?

3.0km

12.04km

17.2km

34.18km

36.61km Richtige Antwort

Antwortdetails

Lies die Unterrichtsnotiz zu Bearings (WAEC)

Lies die Unterrichtsnotiz zu Angles (WAEC)

Bearings

Angles

Antwort anzeigen

Frage 4 Bericht

If sin θ = \(\frac{\sqrt{3}}{2}\) and 0 < θ < 180°, what is cos θ ?

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

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

\(\frac{1}{2}\) Richtige Antwort

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

\(\sqrt{3}\)

Antwortdetails

Lies die Unterrichtsnotiz zu Sine, Cosine And Tangent Of An Angle (WAEC)

Sine, Cosine And Tangent Of An Angle

Antwort anzeigen

Frage 5 Bericht

One bag contains 4 white balls and 2 black balls. Another bag contains 3 white balls and 5 black balls, if one ball is drawn from each bag, what is the probability that both are white?

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

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

\(\frac{7}{24}\)

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

\(\frac{1}{24}\)

Antwortdetails

Lies die Unterrichtsnotiz zu Probability (WAEC)

Lies die Unterrichtsnotiz zu Surds (radicals) (WAEC)

Probability

Surds (radicals)

Antwort anzeigen

Frage 6 Bericht

If \(\frac{t}{1}\) = \(\sqrt{(\frac{4\pi^2}{g}})\), what is the value of g when I = 4.5; t = 5 secs

3.20 ms²

11.31 ms²

32.00 ms² Richtige Antwort

56.57 ms²

160.00 ms²

Antwortdetails

Lies die Unterrichtsnotiz zu Probability (WAEC)

Lies die Unterrichtsnotiz zu Modular Arithmetic (WAEC)

Probability

Modular Arithmetic

Antwort anzeigen

Frage 7 Bericht

What is the volume of a cube if the diagonal of one of the sides is \(\sqrt{50}\)cm?

7.07cm\(^3\)

50.0cm\(^3\)

125.0cm\(^3\) Richtige Antwort

353.4cm\(^3\)

625.0cm\(^3\)

Antwortdetails

Lies die Unterrichtsnotiz zu Volumes (WAEC)

Lies die Unterrichtsnotiz zu Simple Operations On Algebraic Expressions (WAEC)

Volumes

Simple Operations On Algebraic Expressions

Antwort anzeigen

Frage 8 Bericht

What must be added to 3x² - 5x to make it a perfect square?

\(\frac{36}{25}\)

\(\frac{25}{36}\) Richtige Antwort

-\(\frac{25}{36}\)

-\(\frac{5}{6}\)

-\(\frac{6}{5}\)

Antwortdetails

Lies die Unterrichtsnotiz zu Simple Operations On Algebraic Expressions (WAEC)

Lies die Unterrichtsnotiz zu Quadratic Equations (WAEC)

Simple Operations On Algebraic Expressions

Quadratic Equations

Antwort anzeigen

Frage 9 Bericht

A girl on top of a storey building 36m high dropped a N10.00 note on the ground below. If the angle of depression of the N10.00 note is 35°, how far is the money from the girl?

20.64m

29.48m

44.49m

49.55m

62.76m Richtige Antwort

Antwortdetails

Lies die Unterrichtsnotiz zu Bearings (WAEC)

Lies die Unterrichtsnotiz zu Angles Of Elevation And Depression (WAEC)

Bearings

Angles Of Elevation And Depression

Antwort anzeigen

Frage 10 Bericht

After what length of time will N2400.00 yield an interest of N60.00 at 1\(\frac{1}{2}\)% per annum?

2\(\frac{4}{5}\) years

1\(\frac{2}{3}\) years Richtige Antwort

1\(\frac{1}{2}\) years

1 years

\(\frac{3}{5}\) year

Antwortdetails

Lies die Unterrichtsnotiz zu Fractions, Decimals And Approximations (WAEC)

Fractions, Decimals And Approximations

Antwort anzeigen

Frage 11 Bericht

If , sT = \(\sqrt{\frac{[(a + T)T]}{a}}\) what does T equal?

T = (a²s² – 1)

T = (a²s²– 1) ÷ a

T = a ÷ (a² - s²)

T = a ÷ (a²s² – 1) Richtige Antwort

T = (as – 1)²

Antwortdetails

Lies die Unterrichtsnotiz zu Algebraic Expressions (WAEC)

Algebraic Expressions

Antwort anzeigen

Frage 12 Bericht

Two parallel chords of a circle are respectively 46cm and 40cm long. If the radius of the circle is 25cm and the centre of the circle lies between the two chords, what is the distance between the chords?

7cm

15cm

22cm Richtige Antwort

26cm

30cm

Antwortdetails

Lies die Unterrichtsnotiz zu Circles (WAEC)

Lies die Unterrichtsnotiz zu Number Bases (JAMB)

Lies die Unterrichtsnotiz zu Triangles And Polygons (WAEC)

Circles

Number Bases

Triangles And Polygons

Antwort anzeigen

Frage 13 Bericht

The mean heights of 3 groups of students consisting of 20, 16 and 14 students are 1.67m, 1.50m and 1.40m Respectively. What is the mean height of all the students?

1.52m

1.53m

1.54 Richtige Antwort

1.55m

1.56m

Antwortdetails

Antwort anzeigen

Frage 14 Bericht

The mean and the range of the set of numbers: 1.20, 1.00, 0.90, 1.40, 0.80, 0.80, 1.20 and 1.10 are p and q respectively. What is the value of p ÷ q?

1.11

1.85 Richtige Antwort

2.45

3.85

Antwortdetails

Lies die Unterrichtsnotiz zu Statistics (WAEC)

Statistics

Antwort anzeigen

Frage 15 Bericht

Given that the universal set U={14,15,16,17,18,19,20}, J ={16,19,20} and K= {14,15,18}, find (J' ∩ K')1.

{17}

{16, 17, 19, 20}

{1, 4, 15, 17, 18}

{14, 15, 16, 18, 19, 20} Richtige Antwort

{14, 15, 16, 17, 18, 19, 20}

Antwortdetails

Antwort anzeigen

Frage 16 Bericht

A cone was developed from a sector of a circle with radius10cm and an angle at the centre of 108°. What is the radius of the cone?

9.0cm

8.5cm

7.2cm

4.3cm

3.0cm Richtige Antwort

Antwortdetails

Lies die Unterrichtsnotiz zu Euclidean Geometry (JAMB)

Euclidean Geometry

Antwort anzeigen

Frage 17 Bericht

The probability that a student will pass a mathematics test is ⅗. If 3 students are chosen at random, what is the probability that at least 2 of them will pass the test?

\(\frac{27}{125}\)

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

\(\frac{72}{125}\)

\(\frac{76}{125}\)

\(\frac{81}{125}\) Richtige Antwort

Antwortdetails

Lies die Unterrichtsnotiz zu Probability (WAEC)

Probability

Antwort anzeigen

Frage 18 Bericht

Twice a number, x, is added to 5, the result is at least 11. What is the range of values of x?

x > 3

x ≥ 3 Richtige Antwort

x ≤ 3

x < 3

x ≤ -3

Antwortdetails

Lies die Unterrichtsnotiz zu Solution Of Linear Equations (WAEC)

Lies die Unterrichtsnotiz zu Inequalities (JAMB)

Lies die Unterrichtsnotiz zu Simple Operations On Algebraic Expressions (WAEC)

Solution Of Linear Equations

Inequalities

Simple Operations On Algebraic Expressions

Antwort anzeigen

Frage 19 Bericht

Simplify 2a² -4ab - 6a² - 10ab + 5ab - 5a²

-9(a + b)

9(a + b)

-9a (a + b) Richtige Antwort

9a(a - b)

9b(a + b)

Antwortdetails

Lies die Unterrichtsnotiz zu Solution Of Linear Equations (WAEC)

Lies die Unterrichtsnotiz zu Algebraic Expressions (WAEC)

Lies die Unterrichtsnotiz zu Simple Operations On Algebraic Expressions (WAEC)

Solution Of Linear Equations

Algebraic Expressions

Simple Operations On Algebraic Expressions

Antwort anzeigen

Frage 20 Bericht

What is the total surface area of a cylinder with radius 2cm and height 1.5cm, correct to 2 significant figures?

440cm\(^2\)

220cm\(^2\)

88cm\(^2\)

44cm\(^2\) Richtige Antwort

22cm\(^2\)

Antwortdetails

Lies die Unterrichtsnotiz zu Volumes (WAEC)

Lies die Unterrichtsnotiz zu Areas (WAEC)

Volumes

Areas

Antwort anzeigen

Frage 21 Bericht

What is the total surface area of a cuboid whose dimensions are 12cm × 8cm × 3cm?

312cm\(^2\) Richtige Antwort

96cm\(^2\)

36cm\(^2\)

24cm\(^2\)

12cm\(^2\)

Antwortdetails

Lies die Unterrichtsnotiz zu Volumes (WAEC)

Lies die Unterrichtsnotiz zu Areas (WAEC)

Volumes

Areas

Antwort anzeigen

Frage 22 Bericht

Solve the equation: \(\frac{1}{3}x\) + \(\frac{2}{5}\) = \(\frac{3}{4}x\) - \(\frac{1}{6}\)

\(\frac{17}{30}\)

\(\frac{65}{102}\)

\(\frac{25}{34}\)

\(\frac{102}{75}\)

\(\frac{34}{25}\) Richtige Antwort

Antwortdetails

Lies die Unterrichtsnotiz zu Solution Of Linear Equations (WAEC)

Solution Of Linear Equations

Antwort anzeigen

Frage 23 Bericht

A petrol attendant recorded the number of vehicles that bought petrol from him for -3 hours and recorded 12 cars and 27 buses. What is the probability that the next vehicle will be a bus?

\(\frac{4}{39}\)

\(\frac{4}{13}\)

\(\frac{5}{13}\)

\(\frac{6}{13}\)

\(\frac{9}{13}\) Richtige Antwort

Antwortdetails

Lies die Unterrichtsnotiz zu Surds (radicals) (WAEC)

Surds (radicals)

Antwort anzeigen

Frage 24 Bericht

If sin 30° = 0.5, what is the cosine of its complement?

-0.866

-0.5

0.0.5 Richtige Antwort

0.866

Antwortdetails

Lies die Unterrichtsnotiz zu Sine, Cosine And Tangent Of An Angle (WAEC)

Lies die Unterrichtsnotiz zu Trigonometry (JAMB)

Sine, Cosine And Tangent Of An Angle

Trigonometry

Antwort anzeigen

Frage 25 Bericht

A wire was shaped to form a square of area 81cm\(^2\). An equilateral triangle was formed by the same wire,What is the length of a side of the triangle formed?

3cm

6cm

9cm

12cm Richtige Antwort

27cm

Antwortdetails

Antwort anzeigen

Frage 26 Bericht

What are the factors of 2x\(^2\) - xy - 3y\(^2\) ?

(2x + 3y)(x + y)²

(2x + 3y)(x + y)

(2x + 3y)(x - y)

(2x - 3y)(x + y) Richtige Antwort

(2x - 3y)(x - y)

Antwortdetails

Lies die Unterrichtsnotiz zu Algebraic Expressions (WAEC)

Algebraic Expressions

Antwort anzeigen

Frage 27 Bericht

Three sets of rice x, y and z are sold for N15.00, N35.00 and N60.00 respectively per kg. It they are mixed in the ratio of 1: 3 : 2, what is the cast per kg of the mixture?

N45.00

N42.50

N40.00 Richtige Antwort

N35.50

N25.80

Antwortdetails

Lies die Unterrichtsnotiz zu Sine, Cosine And Tangent Of An Angle (WAEC)

Lies die Unterrichtsnotiz zu Positive And Negative Integers, Rational Numbers (WAEC)

Lies die Unterrichtsnotiz zu Ratio, Proportions And Rates (WAEC)

Sine, Cosine And Tangent Of An Angle

Positive And Negative Integers, Rational Numbers

Ratio, Proportions And Rates

Antwort anzeigen

Frage 28 Bericht

An amount of money is shared among P,Q and R such that for every 3P gets, Q gets 2 and for every 1Q gets, R gets 4. Find P: Q : R

3 : 1 : 4

3 : 2 : 1

3 : 2 : 4

3 : 3 : 4

3 : 2 : 8 Richtige Antwort

Antwortdetails

Lies die Unterrichtsnotiz zu Sine, Cosine And Tangent Of An Angle (WAEC)

Lies die Unterrichtsnotiz zu Variation (JAMB)

Lies die Unterrichtsnotiz zu Financial Arithmetic (WAEC)

Sine, Cosine And Tangent Of An Angle

Variation

Financial Arithmetic

Antwort anzeigen

Frage 29 Bericht

The length, breadth and height of a cuboid are 8cm, 7\(\frac{1}{2}\)cm and 6\(\frac{1}{2}\) cm respectively. What Is its volume in m³ (leave your answer in standard form)?

3.9 × 10^-1m³

3.9 × 10^-2m³

3.9 × 10^-3m³

3.9 × 10^-4m³ Richtige Antwort

3.9 × 10^-5m³

Antwortdetails

Antwort anzeigen

Frage 30 Bericht

A quadratic equation with roots -1\(\frac{1}{2}\) and \(\frac{1}{4}\) is

x² + 3x + 4 = 0

8x² + 10x + 3 = 0

8x² +12x – 3 = 0