61.
In a cricket team, the average age of eleven players in 28 years. What is the
age of the captain?
I.
The captain is eleven years older than the youngest player.
II. The average age of 10 players, other than
the captain is 27.3 years.
III. Leaving aside the captain and the
youngest player, the average ages of three groups of three players each are 25
years, 28 years and 30 years respectively.
A. Any two of the three B. All
I, II and III
C. II only or I and III only D. II
and III only
E. None of these
62.
The average 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. 41 D. 51
63.
There are two sections A and B of a class, consisting of 36 and 44 students respectively.
If the average weight of sections A is 40 kg and that of section b is 35 kg.
Find the average weight of the whole class?
A.
36.25 B. 37.25
C.
38.35 D. 39.25
64.
A batsman makes a score of 87 runs in the 17th inning and thus increases his
averages by 3.Find his average after 17th inning?
A. 19 B.
29
C. 39 D. 49
65.
A students was asked to find the arithmetic mean of the numbers 3, 11, 7, 9,
15, 13, 8, 19, 17, 21, 14 and x. He found the mean to be 12. What should be the
number in place of x?
A. 3 B. 7
C. 17 D. 31
66.
David obtained 76, 65, 82, 67 and 85 marks (out in 100) in English,
Mathematics, Physics, Chemistry and Biology.What are his average marks?
A. 65 B.
69
C. 72 D.
75
67.
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
