10.

Eis

12.

2 D 40200
Example of linear equation involving two variables is
(a) 7x+3y+4z=20. (0) 6x+2y=10.
(c) 8x=2+10. (१) 7a+$b+9c=10+5.

In linear equation 'ax + by =c' a,b and ¢ are considered as :

(a) Variable. (d) Constants.
(c) Zero. (d) Real numbers.
Which of the following short-run cost curves declines continuously ?
(a) Average total cost. (b) Marginal cost.
(c) Average fixed cost. (d) Average variable cost.

The market demand curve for a perfectly competitive industry is QD = 12 —- 2P. The market supply
curve is QS =3+P. The market will be in equilibrium if:

(a) P=6andQ=9. (७) P=5andQ=2.
(c) P=4andQ=4. (d) P=3andQ=6. +
The demand ones faced by a monopolistically competitive firm is
(a) Perfectly elastic. (b) Elastic. ।
(c) Unit elastic. (d) Inelastic.

Which of the following is not a type of market structure ?

(a) Competitive monopoly.

(b) Oligopoly.

(c) Perfect competition.

(d) All of the above are types of market structures.
If AB exists, then (AB)! is :

(೩) 4" 81. (b) BUA.

(c) AB. (d) None of Above.
Two matrices A and B are added if :

(a) Both are ಜಾ ರ್ಕ.

(0) Both have same order.

(c) No of columns of A is equal to columns of B.

(d) No of rows of A is equal to no of columns of B.
(12 x %=6 marks)