Correct Answer: A. liaise with other trade associations in other countries

Explanation

(a) Some problems encountered in a barter economy are:

(i) double coincidence of wants;

(ii) determining the exchange rate among goods;

(iii) barter economy also faced the problem of indivisibility i.e. where one party to the exchange has an indivisible item such as a sheep;

(iv) Some goods to be ex-changed were not easily portable;

(v) there was the problem of saving commodities for future use;

(vi) the problem of borrowing and buying on credit;

(vii) lack of specialization and division of labour.

(b)The introduction of money has solved these problems in the following ways:

(i) as a medium of exchange it breaks transactions into sale and pur-chase thus there is no need for double coincidence of wants;

(ii) as a unit of account it allows rate of exchange to be easily determined;

(iii) modern money has several units and facilitates exchange in small and large units;

(iv) modern money is easily carried about to facilitates easy transactions;

(v) as a store of value, people with surplus goods convert them into money and save until the money is needed;

(vi) money as a standard of deferred payments allows borrowing and buying on credit;

(vii) Money as a store of value and medium of exchange allows specialization and division of labour.

Correct Answer: A. secondment

Correct Answer: D. claiming to see Jesus at the right hand of God

Correct Answer: B. Soil creep

Correct Answer: B. Three

Correct Answer: A. mute

Correct Answer: C. paradox

Explanation

\((1 + ax)^{n} = ^{n}C_{n} (1)^{n} + ^{n}C_{n - 1} (1)^{n - 1} (ax) + ^{n}C_{n - 2} (1)^{n - 2} (ax)^{2} + ...\)

= \(1 + nax + (\frac{n(n - 1)}{2})(ax)^{2} + ... \)

Given

\(an = 2 .... (1)\)

\(\frac{n^{2} - n}{2}) a^{2} = \frac{3}{2} ... (2)\)

\(\frac{a^{2}n^{2} - a^{2} n}{2} = \frac{3}{2}\)

\(\frac{(an)^{2} - a(an)}{2} = \frac{3}{2} ... (3)\)

From (1), \(an = 2\). (3) becomes

\(\frac{2^{2} - a(2)}{2} = \frac{3}{2}\)

\(\frac{4 - 2a}{2} = \frac{3}{2}\)

\(2 - 2a = \frac{3}{2} \implies 2a = \frac{1}{2}\)

\(\therefore a = \frac{1}{4}\)

Recall \(an = 2\)

\(\frac{n}{4} = 2 \implies n = 8\)

Correct Answer: A. in

Explanation

The last election resulted in a disaster for the Socialist Party