Login / Signup

Question

The average weight of x students in a class increases by 1.5 kg when a new student of weight 69 kg joins the class. If instead, two students each weighing 62 kg join the original group, the average weight (compared to the original) increases by 2 kg. Find
x.

A 10

B 15

C 18

D 32

Practice Next

More Average Questions

Three numbers are given such that when the average of any two numbers is added to the third number, the resulting sums are 450, 420, and 400. Determine the...
In a school club, the ratio of juniors to seniors is 3:2. The average score of all seniors is (x − 2) and the average score of all members is (x + 4). What...
The average age of 12 students is 15 years. If the age of the teacher is also included, the average increases by 1 year. Find the teacher's age.
The number of students in class 'A' is 128, and the ratio of the number of girls to boys is 5:11. If the average number of boys in classes A and B is 148, ...
The average number of books on Biology, Chemistry, and Physics in a book shop is 300. Biology books are 150 more than the average number of Chemistry and P...
The average weight of 20 men is 60 kg and the average weight of 30 women is 50 kg. Find the average weight of all 50 persons together.
A and B started a business investing Rs. 1200 for ‘x’ months and Rs. 1800 for 16 months, respectively. Out of total profit of Rs. 3500, profit ...
The average weight of x persons is 33 kg. The average weight of (x−16) women is 45 kg, the average weight of (x−30) children is 40 kg, and the average weig...
In 40 matches, Mia had a bowling average of 18.6. She played 3 more matches, took 3 wickets after conceding 162 runs, and her average increased by 1.8. Cal...
A man can row 32 km upstream and 60 km downstream in 8 hours. He can also row 40 km upstream and 48 km downstream in 6 hours. Find the speed of the man in ...

Hey! Ask a query

ask-question