Kerala PSC Secretariat Assistant Question Paper - Mathematics 1

1. Find out the values of ‘x’ and ‘y’ if x + y=7; 3x – 2y =11
4,3
5,2
3,4
2,5

2. Five years ago I was thrice was old as my son and ten years later I shall be twice as old as my son. Hoe old are we now?
30 & 40
50 & 20
40 & 15
35 & 15

3. 3 chairs and 2 tables cost Rs 700 and 5 chairs and 3 tables cost Rs 1,100 .What is the cost of 2 chairs and 2 tables?
400
500
600
900

4. Find two consecutive natural numbers, whose squares have been the sum 221.
10,11
9,10
12,13
13,15

5. Find out the values of x & y if 2x + 3y = 31 ; 17x – 11y = 8.
4,7
5,7
6,8
5,8