Question
span >The average age of a class was 16 years. 8 new students with an average age of 12 years joined the class. So, the average age of class decreased by 1 year. The original number of students in the class was:
More Average Questions
- The sum of weights of 25 body builders is 2020 kg. When the weight of the referee is added, the average weight of body builders and the referee becomes 80 ...
- There are three numbers 'a', 'b' and 'c' such that average of 'a' and 'b' is 19, average of 'b' and 'c' is 23 and average of 'a' and 'c' is 18. Find the av...
- Average of 10 positive integers is calculated as 36. It was later found that while calculating the average, someone mistakenly entered 15 instead of 35. Fi...
- Average weight of 11 nurses is 36 kg. If the weight of one more nurse is included, then average weight is increased by 2 kg. Find the weight of the newly a...
- The average of two consecutive even numbers is 75. If the smaller number is increased by 12% and the larger number is decreased by 12%, then find the diffe...
- A class has 20 boys and 15 girls. The average marks of boys is 68 and of girls is 72. Find the approximate average marks of the whole class.
- Rs. 4200 was distributed among 'P', 'Q', 'R' and 'S' in the ratio 2:5:4:3 respectively. Later, 'Q' gave an amount equal to 80% of the average amount receiv...
- In an examination, Aryan scored 54% marks and passed by 98 marks, while Rohit scored 35% marks and failed by 35 marks. Determine the passing marks for the ...
- In an exam, the average score of 300 students is 48. If the average score of the students who passed is 60, and the average score of those who failed is 42...
- The average height of a group of 30 players was recorded as 168 cm. Later it was discovered that 172 was wrongly written as 182 and 160 was written as 150....
Relevant for Exams:
Hey! Ask a query
Please enter email id
The email must be a valid email address.
Please enter Mobile Number
Please enter valid Mobile Number
Please enter your Doubt
