41. A batsman makes a score of 87 runs in the
17th inning and thus increases his average by 3. find his average after 17th
inning.
A.40 B.39
C.87 D.None
42. The average runs of a cricket player of
10 innings was 32. How many runs must he makes ih his next innings so as to
increase his average of runs by 4?
A. 2 B. 4 C. 70 D. 76
43. The mean of 50 observations was 36. It
was found later that an observation 48 was wrongly taken as 23. The corrected
new mean is
A. 35.2 B. 36.1 C. 36.5 D. 39.1
44. How many candidates were interviewed everyday
by the panel A out of the three panels A, B and C?
I.
The three panels on average interview 15 candidates every day.
II. Out of a total of 45 candidates
interviewed everyday by the three panels, the number of candidates interviewed
by panel A is more by 2 than the candidates interviewed by panel c and is more
by 1 than the candidates interviewed by panel B.
A.
I alone sufficient while II alone not sufficient to answer B. II alone sufficient while I alone not
sufficient to answer
C.
Either I or II alone sufficient to answer D.
Both I and II are not sufficient to answer
E.
Both I and II are necessary to answer
45. In an examination, a pupil’s average
marks were 63 per paper. If he had obtained 20 more marks for his Geography
paper and 2 more marks for his History paper, his average per paper would have
been 65. How many papers were there in the examination?
A. 8 B. 10
C. 11 D. 12
46. The average age of the mother and her six
children is 12 years which is reduced by 5 years if the age of the mother is excluded.
How old is the mother?
A. 40
years B. 42 years C. 48 years D. 50 years
47. The average of 20 numbers is zero. Of
them, at the most, how many may be greater than zero?
A. 0
B. 1 C. 10 D. 19
48. The average salary of all the workers in
a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 12000 and
the average salary of the rest is Rs. 6000. The total number of workers in the
workshop is
A. 20 B. 21 C. 22
D. 23
49. Kamal obtained 76, 65, 82, 67 and 85
marks(out of 100) in English, Mathematics, Physics, Chemistry and Biology. What
are his average marks?
A. 65 B. 69 C. 72 D. 75
50.The avearge age of 36 students in a group
is 14 years. when teacher's age is included to it, the average increases by
one.What is the teacher's age in years?
A.
31 B.
36
C.
51 D. None
of these
