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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'RESEARCH OFFICER ECONOMICS AND STATISTICS' And exam conducted in the year 2015. And Question paper code was '160/2015'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
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.}