Subject

Economics

Class

CBSE Class 12

Pre Boards

Practice to excel and get familiar with the paper pattern and the type of questions. Check you answers with answer keys provided.

Sample Papers

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 Multiple Choice QuestionsShort Answer Type

1.

What is the relation between Average Variable Cost and Average Total Cost, if Total Fixed Cost is zero?

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2.

A firm is able to sell any quantity of a good at a given price. The firm's marginal revenue will be:
(Choose the correct alternative):
(a) Greater than Average Revenue
(b) Less than Average Revenue
(c) Equal to Average Revenue
(d) Zero

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3.

When does 'change in demand' take place?

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4.

Differentiated products is a characteristic of: (Choose the correct alternative):
(a) Monopolistic competition only
(b) Oligopoly only
(c) Both monopolistic competition and oligopoly
(d) Monopoly

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5.

Demand curve of a firm is perfectly elastic under:(Choose the correct alternative)
(a) Perfect competition
(b) Monopoly
(c) Monopolistic competition
(d) Oligopoly

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6.

A consumer consumes only two goods X and Y. Marginal utilities of X and Y is 3 and 4 respectively. Prices of X and Y are Rs 4 per unit each. Is consumer in equilibrium? What will be further reaction of the consumer? Give reasons.

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7.

What will be the effect of 10 percent rise in price of a good on its demand if price elasticity of demand is (a) Zero, (b)-1, (c)-2.


(a) When Ed(Elasticity of demand) is zero

straight E subscript straight d space equals space fraction numerator Percentage space change space in space quantity space demanded over denominator Percent space change space in space price end fraction

0 space equals space fraction numerator Percentage space change space in space quanity space demanded over denominator 10 end fraction
Therefore, Percentage change in quantity demand  = 0, so it has no effect on demand

(b) Ed = -1,  Percentage change in price  = 10
negative 1 space equals space fraction numerator percent sign space change space in space quantity space demanded over denominator percent sign space change space in space price end fraction
minus 1 space equals space fraction numerator percent sign space change space in space quantity space demanded space over denominator 10 end fraction
Therefore, Percentage change in quantity demand  = -10.

(c) Ed = -2,  Percentage change in price  = 10

straight E subscript straight d space equals space fraction numerator percent sign Change space in space quantity space demanded over denominator percent sign space Change space in space price end fraction
minus 2 equals fraction numerator percent sign Change space in space quantity space demanded over denominator 10 end fraction
Therefore, Percentage change in quantity demanded= -20

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8.

What is minimum price ceiling? Explain its implications.

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9.

If the prevailing market price is above the equilibrium price, explain its chain of effects.

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10.

Define demand. Name the factors affecting market demand.

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