69.

70.

2+:

72.

3

74.

75,

76.

77.

Which of the following statements about any two square matrices of the same order is
false ?

(A) Addition is associative (8) Multiplication is commutative

(C) Multiplication is associative (D) Addition is commutative

The value of log, 51728 is:
(A) 3.2875 (8) 4.0000 (೮). 6.0000 (D) 5

The supply and demand curves are respectively y=8x and y=20-22 Then the equilibrium
price is : |
കവ 2 (8) 0 (@ 17 (D) 16

In a survey regarding the alcohol consumption of people in a village it was observed that
35% of the people consume liquor A, 52% liquor B, 40% liquor C, 30% liquor A and B, 25%
liquor B and C, 20% liquor A and C and 10% all the three brands. The percentage of people
in the village those who do not consume any kind of liquor of the above three kinds is :

(ക) 82% ® 47% © 38% യ) 13%

The derivative of the function 2/ 15 :

1 = 1
८५) त्तं ® 42 € 1 നു I

Which of the following statements regarding the extreme values of the function f{x)=13 is
true ?

(4) 1135 70 maximum

(8) has no minimum

(ಲಿ) 155 both maximum and minimum

(D) 1185 neither a maximum nor a minimum

3
If an amount of ¥ 12,540 is divided among A, B and C so that A shall receive 7 as much as

B and C together receive, then A must get :

(ಗಿ) 9 (B) 3762 (C) 4180 (D) Data insufficient
The value of 1 + > न | o5 വ ன 13.
(^) 1.5 ® 2 (ಲ) 2 (2) 24
The sum of the first 20 odd natural numbers 15 :
(A) 400 (8) 210 (© 420 (D) 2870
11 160/2015

(P.T.O.}