TNPSC - Mathematics important Questions and Answer for Group 1, Group 2 and VAO Exam

1. The greatest number which on dividing 1657 and 2037 leaves remainders 6 and 5 respectively is.

a. 123

b. 127

c. 235

c. 305

Answer: 127

2. A and B can do the work in 8 days and B and C can do the same work in 12 days and A, B and C can do the same work in 6 days. In how many days both A and C can do the same work?

a. 4

b. 6 

c. 8

d. 12

Answer: 8

3. The seventh term in the series 2, 6, 12, 20, 30 ___

a. 42

b. 72

c. 56

d. 90

Answer: 56

4. The cost price of a cow is Rs. 6,000. What is the selling price in order to make a profit of 30%?

a. 1,800

b. 7,000

c. 7,800

d. 9,000

Answer: 7,800

5. Gold is 19 times as heavy as water and copper is 9 times as heavy as water. In what ratio should these be mixed to get-an alloy 15 times as heavy as water?

a. 1:1

b. 2:3

c. 1:2

d. 3:2

Answer: 3:2

6. 

a. 1/54

b. 10/27

c. 20/3

d. None of these

Answer: 20/3

7. The difference between S.I and C.I on Rs. 500 for 1 year at 12.5% per annum is

a. Rs. 15

b. Rs. 15.50

c. Rs. 50

d. Rs. 0

Answer: RS.0

8. The sub triplicate·ratio of 64:729 is

a. 8:27

b. 27:8

c. 4:9

d. 9:4

Answer: 4:9

9. There are 5 friends P, Q, R, S and T. P knows more than S. Q knows as much a,s T. R knows less than T. S knows more than Q. The best knowledgeable person amongst all is

a. P

b. Q

c. S

d. T

Answer: P

10. Find the next term of the seguence: 0,1,1,2,3,5,8,13,____

a. 17

b. 15

c. 31

d. 21

Answer: 21