An article used as a means of exchange in the early days of trade in West Africa was

• A. cedis
• B. cowrie
• C. dalasi
• D. naira

The sagging of overhead electrical wires is caused by

• A. radiation of heat.
• B. rough handling.
• C. gravitational attraction
• D. Linear expansion

A cylindrical container closed at both ends, has a radius of 7cm and height 5cm [Take π = 22/7]. What is the volume of the container?

• A. 35cm³
• B. 154cm³
• C. 220cm³
• D. 770cm³

The main function of the caudal fin in Tilapia is to

• A. propel it forward in water
• B. steer it while changing direction
• C. balance it in water
• D. enable it to float in water

Which of the following is a function of money? It is

• A. portable
• B. A standard of diferred payment
• C. relatively stable in value
• D. generally acceptable

The angular distance of a point on the Earth's surface measured in degrees from the centre of the Earth east or west of the Greenwich Meridian is known as

• A. axis
• B. latitude
• C. orbit
• D. longitude

The table below shows the distribution of ages of workers in a company.

(a) Using an assumed mean of 39, calculate the (i) mean (ii) standard deviation; of the distribution.

(b) If a worker is selected at random from the company for an award, what is the probability that he is at most 36 years old?

In product pricing, which of these elements need more consideration than others?

• A. The cost of producing the product
• B. The economic conditions in the market
• C. the demography of the buyers of the product
• D. The demand for the product

four broad classifications of overheads are?

• A. production, selling, distribution and material
• B. production, selling, distribution and administration
• C. selling, distribution and production and wages
• D. distribution, selling, administration and material

Synonym: SUCCULENT

• A. Notorious
• B. Juicy
• C. Sour
• D. Angry