Explanation

(a) S.P = \(C.P + \frac{% profit}{100} \times C.P\)

= \(300 + (\frac{x}{100} \times 300)\)

S.P = N(300 + 3x)

Therefore, Bola bought it at N(300 + 3x).

James paid \(N(6x + \frac{3}{4})\) extra from what Lamin paid, therefore Bola's S.P = \(N(300 + 6x + \frac{3}{4})\)

= N(300.75 + 6x).

Profit for Bola = \(N(300.75 + 6x - (300 + 3x)) = N(0.75 + 3x)\)

\(\frac{x}{100} \times N(300 + 3x) = N(0.75 + 3x)\)

\(300x + 3x^{2} = 75 + 300x\)

\(\implies 3x^{2} = 75\)

\(x^{2} = 25 \therefore x = 5\)

(b) \(3x - 2 < 10 + x < 2 + 5x\)

\(3x - 2 < 10 + x \implies 3x - x < 10 + 2\)

\(2x < 12 \implies x < 6\)

\(10 + x < 2 + 5x\)

\(x - 5x < 2 - 10\)

\(-4x < -8 \implies x > 2\)

The range = \(2 < x < 6\)

Correct Answer: C. Repetition

Explanation

The reason is that the same phrases are repeated at the beginning of each line.

Correct Answer: B. profit level

Correct Answer: C. Peter, James and John

Explanation

The importance of the Lyttleton Constitution of 1954 in the Political development of Nigeria are:

(i) It introduced the federal system of government.

(ii) It introduced direct elections into the federal, eastern and western legislatures but indirect election by adult male suffrage in the north.

(iii) Nigerians became ministers with full ministerial responsibilities.

(iv) It established the offices of the Speaker and Deputy speaker in the Nigerian legislatures.

(v) Power of intervention by the centre was removed and regional legislatures could legislate on matters that affected them.

(vi) The constitution regionalised both the civil service and the judiciary.

(vii)It raised the status of the Governor to Governor-General and Lieutenant-Governors to Governors.

(viii)It created the office of the premiers in the regions.

(ix)The constitution separated Lagos and Southern Cameroons from the West and East respectively.

Correct Answer: D. soil

Correct Answer: c. Ensure that no foreign object has been left in the wound.

Correct Answer: B. viscocity

Correct Answer: A. 125m

Explanation

speed = \(\frac{90 \times 10^3}{3600}\) = 25ms-1

Acceleration = velocity change / time = 25 / 10

: Acceleration = 2.5

Using S = Ut + \(\frac{1}{2}\) at^2

S = \(\frac{1}{2}\) X 2.5 X 10^2 = 125m

Explanation

(a) Methods of measuring the national income of a country are:

(i) Output method: This method measures the total money value of all goods and services produced in the country in a year. In order to avoid double counting, the figures are collected on the basis of value added.

(ii) Expenditure method:The expenditure approach calculates the total amount spent on consumption and investment purposes during the year. It is the total amount spent on goods and services by individuals, the government and firms.

(iii) Income method:This is obtained by adding incomes received by all the factors of production. The incomes to be added include workers' earning, profits of entrepreneurs, rents on land, etc. Transfer payments such as payment to old people, beggars are not included.

(b) Problems associated with measuring national income include:

(i) Incomplete information: Income returns are inaccurate and incomplete.

(ii) Double counting.

(iii) Inflation which changes the value of money upsets the calculation.

(iv) Subsistence production, i.e. housewife, production of goods for one's family.

(v) Unpaid goods and services, e.g. housewife, housekeepers.

(vi) Illegal transactions like drug peddling, smuggling etc.