Question:

-Look at this series: 3,4,7,8,11,12, ___ . What number should come next?

A.

7

B.

10

C.

14

D.

15

Answer» d. 15

Question:

-The mean of ten observations is 23. If two observations 4 and 7 are substituted by 3 and 8, then the new value of mean will be

A.

20

B.

19

C.

23

D.

25

Answer» c. 23

Question:

-In a statistical investigation of 1000 families of a city, it was found that 60 families had neither a radio nor a TV. 790 families had a radio and 210 families had a TV. How many families in the sample have both?

A.

60

B.

0

C.

90

D.

100

Answer» a. 60

Question:

-Pointing to a person, Raju said. “His only brother is the father of my daughter’s father”. How is the person related to Raju?

A.

father

B.

grandfather

C.

uncle

D.

brother-in-law

Answer» c. uncle

Question:

-How many sevens are there in the following number series which are preceded by an odd number and followed by an even number? 374579673173978375971572

A.

8

B.

5

C.

3

D.

4

Answer» c. 3

Question:

-The mean of 10 observations is 21. If each observation is multiplied by 4 and 5 is subtracted from each of them, then the mean will be

A.

79

B.

81

C.

84

D.

16

Answer» a. 79

Question:

-Pointing to a girl, Ramakant said, “She is the daughter of the only sister of my father”. How is Ramankant related to the girl?

A.

uncle

B.

cousin

C.

father

D.

grandfather

Answer» b. cousin