Average
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Q. A bag contains 5 red balls and 3 blue balls. If the average weight of the red balls is 200 grams and the blue balls is 150 grams, what is the average weight of all the balls?
Q. A class has 20 students with an average height of 150 cm. If 5 new students with an average height of 160 cm join, what is the new average height?
Q. A class has 30 students with an average score of 75. If one student scores 90, what will be the new average?
Q. A class has 30 students. If the average score of the class is 75 and one student scored 90, what is the average score of the remaining students?
Q. A class has 30 students. If the average score of the class is 75 and one student scored 90, what will be the new average if that student is removed?
Q. A class has 30 students. If the average score of the class is 75 and one student scores 90, what is the average score of the remaining students?
Q. A class of 30 students has an average score of 75. If a new student joins and the average becomes 76, what is the score of the new student?
Q. A company has 100 employees with an average salary of $5000. If 10 employees leave with an average salary of $6000, what is the new average salary?
Q. A family has 4 members with an average age of 25 years. If the youngest member is 10 years old, what will be the average age if the youngest member turns 20?
Q. A family has 4 members with an average age of 30 years. If a new member joins with an age of 40 years, what will be the new average age?
Q. A family has 4 members with an average income of $3000. If the father earns $4000, what is the average income of the other three members?
Q. A family has an average income of $5000. If the father earns $7000, what is the average income of the mother and child?
Q. A family spends an average of $200 per week. If they increase their spending by 10% next week, what will be their average spending for that week?
Q. A group of 6 people has an average weight of 70 kg. If one person weighing 80 kg leaves, what is the new average weight?
Q. A group of friends has an average age of 25 years. If one friend aged 30 joins, what is the new average age of the group of 4 friends?
Q. A group of friends has an average age of 25 years. If one friend aged 30 leaves the group, what will be the new average age if the group had 5 members?
Q. A group of friends has an average age of 25 years. If one friend leaves and the average age becomes 26, how many friends were there originally?
Q. A group of friends has an average age of 30 years. If one friend leaves who is 40 years old, what will be the new average age if the group has 5 members?
Q. A man has an average expenditure of $200 per month. If he spends $250 in the first month, what will be his average expenditure for the first two months?
Q. A person scores 80, 90, and 70 in three exams. What score does he need in the fourth exam to achieve an average of 85?
Q. A student scored 80, 85, 90, and 95 in four subjects. What is the average score?
Q. A student scored 80, 90, 70, and 60 in four subjects. What score does he need in the fifth subject to have an average of 75?
Q. A student scores 60, 70, and 80 in three subjects. If he wants an average of 75, what score does he need in the fourth subject?
Q. A student scores 80, 85, and 90 in three tests. What score does he need in the fourth test to have an average of 85?
Q. A student scores 80, 90, and 70 in three subjects. If he wants an average of 85 after scoring in a fourth subject, what should he score?
Q. A student scores 80, 90, and 70 in three subjects. What score does he need in the fourth subject to have an average of 85?
Q. A student scores 80, 90, and 70 in three subjects. What score does he need in the fourth subject to achieve an average of 85?
Q. If the average of 10 numbers is 50 and the average of another 10 numbers is 60, what is the average of all 20 numbers?
Q. If the average of 12 numbers is 24, what is the average if one number is increased by 12?
Q. If the average of 4 numbers is 15, what is the sum of those numbers?
