Practice Average Questions and Answers

• In a class of ‘x’ students, if a new student weighing 32 kg joins the class, then the average weight of the class increases by 1 kg. If the new...
• Average age of a class of 33 students is 14 years. Average age of the class is increased by 18 months if the age of the teacher is included. Find the age o...
• Average age of a class of 41 students is 17 years. Average age of the class is increased by 18 months if the age of the teacher is included. Find the age o...
• Average age of a class of 28 students is 10 years. Average age of the class is increased by 12 months if the age of the teacher is included. Find the age o...
• Average age of a class of 25 students is 13 years. Average age of the class is increased by 30 months if the age of the teacher is included. Find the age o...
• The average age of a group of 15 students is 32 years. Two persons of age 48 years and 32 years, left the group and 2 persons of age 54 years and 101 years...
• The average age of a group of 10 students is 30 years. Two persons of age 40 years and 35 years, left the group and 2 persons of age 50 years and 95 years,...
• The average age of a group of 20 students is 40 years. Two persons of age 35 years and 30 years, left the group and 2 persons of age 40 years and 85 years,...
• The average age of a group of 10 students is 30 years. Two persons of age 25 years and 30 years, left the group and 2 persons of age 54 years and 101 years...
• The average age of a group of 10 students is 20 years. Two persons of age 25 years and 20 years, left the group and 2 persons of age 26 years and 29 years,...
• The average age of a group of 20 students is 30 years. Two persons of age 40 years and 35 years, left the group and 2 persons of age 50 years and 65 years,...
• The average age of a group of 10 students is 30 years. Two persons of age 12 years and 10 years, left the group and 2 persons of age 20 years and 12 years,...
• The average age of a group of 10 students is 12 years. Two persons of age 15 years and 20 years, left the group and 2 persons of age 54 years and 101 years...
• The average age of a group of 12 students is 32 years. Two persons of age 40 years and 31 years, left the group and 2 persons of age 54 years and 101 years...
• The average age of a group of 20 students is 40 years. Two persons of age 44 years and 33 years, left the group and 2 persons of age 45 years and 72 years,...
• Average run scored by a batsman in first ‘x’ matches is 70. In next 12 matches he scored runs with an average of 90 so that his overall average...
• Average run scored by a batsman in first ‘x’ matches is 41. In next 12 matches he scored runs with an average of 61 so that his overall average increas...
• Average run scored by a batsman in first ‘x’ matches is 42. In next 13 matches he scored runs with an average of 62 so that his overall average increas...
• Average run scored by a batsman in first ‘x’ matches is 43. In next 14 matches he scored runs with an average of 63 so that his overall average...
• Average run scored by a batsman in first ‘x’ matches is 50. In next 16 matches he scored runs with an average of 70 so that his overall average increas...
• Average run scored by a batsman in first ‘x’ matches is 20. In next 5 matches he scored runs with an average of 60 so that his overall average increase...
• Average run scored by a batsman in first ‘x’ matches is 77. In next 12 matches he scored runs with an average of 90 so that his overall average increas...
• Average run scored by a batsman in first ‘x’ matches is 88. In next 10 matches he scored runs with an average of 100 so that his overall averag...
• Average run scored by a batsman in first ‘x’ matches is 44. In next 8 matches he scored runs with an average of 80 so that his overall average ...
• Average run scored by a batsman in first ‘x’ matches is 55. In next 12 matches he scored runs with an average of 90 so that his overall average increas...
• Average run scored by a batsman in first ‘x’ matches is 75. In next 13 matches he scored runs with an average of 90 so that his overall average...
• The average age of a group of 24 persons is found to be 28 years. Later it is found that age of two of the persons is calculated as 32 and 64 instead of 87...
• The average age of a group of 20 persons is found to be 26 years. Later it is found that age of two of the persons is calculated as 30 and 60 instead of 50...
• The average age of a group of 25 persons is found to be 30 years. Later it is found that age of two of the persons is calculated as 32 and 60 instead of 80...
• The average age of a group of 24 persons is found to be 30 years. Later it is found that age of two of the persons is calculated as 30 and 60 instead of 56...
• In a family of 10, the men eat on average 70kg of food and women eat on an average 45kg of food. The men and women are equal in number. A woman joined the ...
• In a family of 10, the men eat on average 65 kg of food and women eat on an average 45 kg of food. The men and women are equal in number. A woman joined th...
• In a family of 8, the men eat on average 70 kg of food and women eat on an average 51 kg of food. The men and women are equal in number. A woman joined the...
• The average of 8 consecutive even numbers written in ascending order is 17. What is the average of the last three numbers, 36 and 53 ?
• Average age of A, B and C is 20 years. Average age of B and C was 12 years when A was born. If B is 21 years old, then, find the age of C, 6 years hence.
• Average weight of 5 students in a class increases by 4 kg when weight of teacher is also included. If sum of average weight of 5 students and weight of tea...
• The average of twelve numbers is 45.5. The average of the first four numbers is 41.5 and that of the next five numbers is 48. The 10th number is 4 more tha...
• A cricketer whose bowling average is 24.85, runs per wicket, takes 5 wickets for 52 runs and thereby decreases his average by 0.85. The number of wickets t...
• The average temperature of Monday, Tuesday, Wednesday and Thursday is 50°. The average temperature for Tuesday, Wednesday, Thursday and Friday is 60°. If...
• The average of n numbers is 66. If each of 54% of the numbers is increased by 13 and each of the remaining numbers is decreased by 12, then the new average...