NECO SSCE - General Mathematics - 2001

A chord is drawn 12cm away from the centre of a circle of radius 13cm. What is the length of the chord?

If s = \(\sqrt{(\frac{a^2}{x^2} - \frac{b^2}{y^2})}\)what does y equal?

Mr Aborowa bought a car for N200,000.00 and later sold it for N170,000.00. What is the percentage loss?

An arc of a circle subtends an angle of 75° at the centre of the circle. If the diameter of the circle is 7cm, what Is the length of the arc? (take π = 3.142)

If n{A} = 6, n{B} = 5 and n{A ∩ B} = 2, find n{A ∪ B}

From the kip of a storey-buliding, the angle of depression of a mango on a tree 20 m away from the base of the storey-building is 68°. if the mango is 4.5 m above the ground, what is the height of the storey-building to the nearest metre?

If 3 boys shared x oranges among themselves in the ratio 3:5:8, and smallest share was 45 oranges, find the value of x

51 women wore coloured shoes to a party, out of which 21 wore purple and 9 wore white. if a woman is selected at Random. What is the probability that she is wearing neither a purple shoe nor a white shoe?

Convert 101.011₂ to base 10

A trader sold an article for N4,600.00 thereby making a profit of 15%. Calculate the cost price of the article

If cos x = - \(\frac{5}{13}\) where 180° < X < 270°, what is the value of tan x -sin x ?

The angle of elevation of the top T of a pole from a point X on the horizontal ground is 32°, if X is 68 m away from the foot F of the pole, calculate the height FT of the pole, correct to one decimal place.

If the mean of 3, 5, 8, k, 14 and 17 is 11, what is the value of k

Evaluate (\(\frac{1}{343}\))\(^{\frac{1}{3}}\) + (64)\(^{-\frac{1}{3}}\) - \(\frac{4}{9}\)\(^{-\frac{1}{2}}\)

Two fair coins are tossed at the same time. what is the probability of getting a head?

Find the value of x in the equation: 9x = 729

Simplify \(\sqrt{6a} \times \sqrt{576a^6}\)

Two beads are drawn at random, one after the other, with replacement, from a box containing 5 red and 7 white identical beads. What is the probability that the beads are the same colour

The surface area of a sphere is 616m2. what is the volume of-the sphere (correct to two significant figures)? (take π = 3.142)

Simplify 27\(^{-\frac{1}{3}}\) \(\times\) 64\(^{-\frac{1}{3}}\) \(\times\) 4\(^{\frac{1}{3}}\)

If the volume of a cube is (8 x 103)cm\(^3\), what is the surface area the cube?

The lengths of the sides of a triangle are 15m, 21m, and 28cm. What is the size of the angle facing the side 21m (correct to one decimal place)?

Solve the equation x² - 3x - 10 = 0

Find the 19th term of the A.P. \(\frac{5}{6}\), \(\frac{8}{6}\), \(\frac{11}{6}\).................

A bottle of malt costs three times as much as a bottle of Mirinda. If 5 bottles of malt and 4 bottles of Mirinda cost N380.00 altogether, how much does a bottle of malt cost?

In an acute angle-triangle XYZ, XZ = 9cm, YZ = 11cm and ∠XZY = 35° Calculate ∠YXZ, correct to the nearest degree.

If sin θ = 4/5 where 0° ∠ θ ∠ 900, what is the value of cos θ + tan θ?

The bearing of a point Y from point x is 150°. What is the bearing of X from Y?

If t varies inversely as the cube of s, and t = 24, when s = 3, find t when s = 2

The mean age of 12 boys involved survey is 19 years, 3 months. lf the-age of one of the boys is 22 years, what is the mean age of the other-boys?

Find the value of k such that \(t^2\) + kt + \(\frac{25}{4}\) is a perfect square

The radius of a sphere is 21cm. If s and v represent the curved surface area and volume respectively, what is s : v? (take π = 3.142)

Express 0.03785 in standard form correct to 3 significant figures.

Given that (3 - y) ÷ 2x = (6y + 7) ÷ (4x - 5), find the value of x when y = 2

The first term of a G.P is 7. Find its 4th term, if its common ratio is 3.