# IGCSE Economics Paper-1: Specimen Questions with Answers 31 - 32 of 64

## Question 31

### Question

MCQ▾

The rate of increase in population is calculated by;

Choice (4)

a.

b.

CBR-CDR

c.

d.

b.

### Explanation

• The rate of natural increase (RNI) is calculated by subtracting the crude death rate from the crude birth rate of a given area. This rate gives the demographers an idea of how the country is growing but it does not include immigration and emigration. RNI helps in predicting a country՚s economic stability, development, etc.
• The rate of natural increase of human population is calculated by dividing the natural increase by 10. For example, if the birth rate is 12 per 1,000 population, and the death rate is 10 per 1000 population, then the natural increase

## Question 32

### Question

MCQ▾

Fixed costs include:

1. Salary of staff

2. Depreciation of fixed capital

3. Energy cost of manufacturing

4. Lighting expenditure

Choice (4)

a.

1,3, 4

b.

2,3, 4

c.

1,2, 4

d.

1,2, 3