Question 121. a family consists of grandparents, parents and three grandchildren. the average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. what is

28 4/7 years

31 5/7 years

32 1/7 years

None of these

See Solution

Answer: Option B Explanation :

Question 122. the average of five consecutive odd numbers is 61. what is the difference between the highest and lowest numbers?

2

5

8

Cannot be determined

See Solution

Answer: Option C Explanation :

Question 123. the average of five consecutive odd numbers is 61. what is the difference between the highest and lowest numbers?

2

5

8

Cannot be determined

See Solution

Answer: Option C Explanation :

Question 124. a family consists of grandparents, parents and three grandchildren. the average age of the grandparents is 67 years, that of the parents is 35 years and that of the grandchildren is 6 years. what is

28 4/7 years

31 5/7 years

32 1/7 years

None of these

See Solution

Answer: Option B Explanation :

Question 125. the average of runs of a cricket player of 10 innings was 32. how many runs must he make in his next innings so as to increase his average of runs by 4?

2

4

70

76

See Solution

Answer: Option D Explanation :

Question 126. the average of runs of a cricket player of 10 innings was 32. how many runs must he make in his next innings so as to increase his average of runs by 4?

2

4

70

76

See Solution

Answer: Option D Explanation :

Question 127. the average monthly income of p and q is rs. 5050. the average monthly income of q and r is 6250 and the average monthly income of p and r is rs. 5200. the monthly income of p is:

Rs. 3500

Rs. 4000

Rs. 4050

Rs. 5000

See Solution

Answer: Option B Explanation :

Question 128. the average monthly salary of 20 employees in an organisation is rs. 1500. if the manager's salary is added, then the average salary increases by rs. 100. what is the manager's monthly salary?

Rs. 2000

Rs. 2400

Rs. 3600

Rs. 4800

See Solution

Answer: Option C Explanation :

Question 129. the captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. if the ages of these two are excluded, the average age of the remaining players is one year less tha

23 years

24 years

25 years

None of these

See Solution

Answer: Option A Explanation :

Question 130. the average age of a husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. the present age of the husband is:

19 years

23 years

28.5 years

29.3 years

See Solution

Answer: Option A Explanation :

Question 131. the average age of a husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. the present age of the husband is:

19 years

23 years

28.5 years

29.3 years

See Solution

Answer: Option A Explanation :

Question 132. the average age of a husband, wife and their child 3 years ago was 27 years and that of wife and the child 5 years ago was 20 years. the present age of the husband is:

19 years

23 years

28.5 years

29.3 years

See Solution

Answer: Option A Explanation :

Question 133. the captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. if the ages of these two are excluded, the average age of the remaining players is one year less tha

23 years

24 years

25 years

None of these

See Solution

Answer: Option A Explanation :

Question 134. a cricketer has a certain average for 10 innings. in the eleventh inning, he scored 108 runs, there by increasing his average by 6 runs. his new average is:

48

52 runs

55 runs

60 runs

See Solution

Answer: Option A Explanation :

Question 135. the captain of a cricket team of 11 members is 26 years old and the wicket keeper is 3 years older. if the ages of these two are excluded, the average age of the remaining players is one year less tha

23 years

24 years

25 years

None of these

See Solution

Answer: Option A Explanation :

Question 136. the arithmetic mean of the scores of a group of students in a test was 52. the brightest 20% of them secured a mean score of 80 and the dullest 25% a mean score of 31. the mean score of remaining 55%

45

50

51.4 approx.

54.6 approx.

See Solution

Answer: Option C Explanation :

Question 137. the average of 20 numbers is zero. of them, at the most, how many may be greater than zero ?

See Solution

Answer: Option C Explanation :

Question 138. the average age of students of a class is 15.8 years. the average age of boys in the class is 16.4 years and that of the girls is 15.4 years. the ration of the number of boys to the number of girls in

1:2

2:3

3:4

3:5

See Solution

Answer: Option B Explanation :

Question 139. the average of runs of a cricket player of 10 innings was 32. how many runs must he make in his next innings so as to increase his average of runs by 4 ?

76

79

85

87

See Solution

Answer: Option A Explanation :

Question 140. the average of five consecutive odd numbers is 61. what is the difference between the highest and lowest numbers :