Kerala PSC Previous Years Question Paper & Answer
Page:13
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 2021. And Question paper code was '123/2021'. 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.
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The income of a person is 3,00,000 in the first year and he receives an increase of Rs. 10,000
to his income per year for the next 19 years. Find the total amount, he received in 20 years :
(A) 79,00,000 (B) ൩൧0,000
(0 6,00,000 (D) None of these
Lim य 0
بر ஐ
(A) 0 (8) 1
(ಲ) ०७ (D) Not Defined
d*y ١ dy °
Degree of the differential equation | — + (2) +x°y=0 is:
dx dx
(A) 2 (B) 0
(0 3 0) 5
If 2 (7, is 8 convergent series of positive terms, then 11 U, is:
മട
(A) 1 (B) +1
(0 0 (1) None of these
ച 7 24 ച y, ts
1- 227 287 1... ?
(A) log.” 0) logic’
(0) 108% (1) None of the above
The eccentricity of an ellipse is?
(A) e=1 (8) 041
( 1 0) 04241
Calculate the value of 1.01 - 0.99 =? correct to six decimal places :
(ಸ) 0.01 (B) 0.001
(C) 0.102 (D) 1.99
7
Evaluate 1 sin? 016 -۶
15 128/2021
[?.7.0.]