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 20 students with an average height of 150 cm. If a new student with a height of 160 cm joins, what will be the new average height?
Q. A class has 20 students with an average height of 150 cm. If one student leaves and the average height becomes 148 cm, what is the height of the student who left?
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 scores 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 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 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 the family, making the average age 32 years, what is the age of the new member?
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 family spends an average of $200 per week. If they increase their spending by 10%, what will be their new average spending?
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 size is 5?
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 25 years. If one friend leaves the group, the average age becomes 26 years. How old was the friend who left?
Q. A group of friends has an average age of 30 years. If a new friend aged 40 joins, what will be the new average age if there were originally 5 friends?
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 earns Rs. 5000 in the first month, Rs. 6000 in the second month, and Rs. 7000 in the third month. What is his average monthly income over these three months?
Q. A man earns Rs. 5000 in the first month, Rs. 6000 in the second month, and Rs. 7000 in the third month. What is his average monthly income?
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 60, 70, and 80 in three exams. What score is needed in the fourth exam to achieve an average of 75?
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?