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11th Economics Monthly Test - 2 ( Cost and Revenue Analysis )

MABS Institution

11th Economics Monthly Test - 2 ( Cost and Revenue Analysis )-Aug 2020

Time : 2.30 Hours

Part - A

Multiple Choice Question - Answer All Question

For the function y = 3x + 2, the average rate of change of y when x increases from 1.5 to 1.6 is ....................

1
0.5
0.6
3

\(Q_{ d }=100-5p\quad and\quad { Q }_{ s }={ Q }_{ d }\) then P=_________________________

5
-5
100
10

When MR is zero, the total revenue becomes ___.

minimum
maximum
normal
equal

Marginal revenue is the addition made to the

total sales
total revenue
total production
total cost

_____= Variable Costs + Costs of Administration.

Fixed Cost
Money Cost
Opportunity Cost
Prime Cost

The gradient of the straight line y = -5x + 12 is

5
12
-5
-12

Find Total Variable Cost where TC = 200 and TFC=50.

50
150
200
250

The methods which are helpful for achieving the objectives of the economic analysis are_________________.

Psychological methods
Biological methods
Mathematical methods
Physiological methods

The cost that remains constant at all levels of output is _____ cost.

fixed
variable
real
social

When AR remains constant MR is also ____.

constant
greater
lesser
none of these

Part - B

Generic 2 - Answer All Question

Integrate : \(\int { ({ x }^{ 2 } } +x-1)dx\)

Define Demand Function?

Give example for Fixed Cost.
For the function y = 4x - 8 find the elasticity and also obtain the value when x = 6.

What is called a square matrix?

Find the slope of the function y = 6x³ for any value of x.

Find the value of the determinant fo the Matrix A =\(\\ \begin{bmatrix} 5 & 6 \\ 7 & -8 \end{bmatrix}\)

Part - C

Generic 3 - Answer All Question

State the meaning integration and the important points need to be remembered.

If TC = 2.5q³ - 13q² + 50q + 12 derive the MC function and AC function.

Find the Elasticity of demand for the function x = 100 - p - p² when p = 5.

If the demand function is x =\(\frac { 400 }{ p } \).Find ed with respect to price at the point where P=4.
Show that the equations 2x - y + z = 7; 3x + y - 5z = 13; x + y + z = 5 are consistent and havr unique solution.

Find the supply function of a commodity such that the quantity supplied is zero, when the price is Rs.5 or below and the supply (quantity) increases continuously at the constant rate of 10 units for each one rupee rise when the price is above Rs.5.

Solve for X quantity demanded if 16x - 4 = 68 + 7x

Part - D

Generic 5 - Answer All Question

What are the standard forms of differentiation?

The demand and supply functions are P_d= 1600 -x² and P_s = 2x² + 400 respectively. Find the consumer's surplus and producer's Surplus at equilibrium point

Explain the steps involved in making presentation using the software 'Microsoft Powerpoint'.

Solve by Cramer's rule the equations
\(2{ x }_{ 1 }+2{ x }_{ 2 }-{ x }_{ 3 }-1=0;\\ { x }_{ 1 }+{ x }_{ 2 }-{ x }_{ 3 }=0\\ 3{ x }_{ 1 }+2{ x }_{ 2 }-3{ x }_{ 3 }=1\)

What are the steps involved in Microsoft Power Point?

Totai cost of the goods produced by a firm is TC(Q) = 192 + 48Q + 4Q². Find 'the (i) Marginal cost, (ii) Average cost, (iii) Fixed cost, (iv) Average variable cost and (v) Average fixed cost.

Explain the Integral Calculus?

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