The number of students at 4 IIM in morni...

The number of students at 4 IIM in morning batch, evening batch and weekends batch is 30, 40 and 60 respectively and their respective average ages (in years) are 22, 21 and 25 then the average age of all the students (combined) is :

22(1/13) years

23(1/3) years

24.5 years

none of these

Text Solution

Verified by Experts

The correct Answer is:

`(30xx12+40xx21+60xx25)/130`=3000/130=23(1/13) years

Topper's Solved these Questions

ALLIGATIONS
QUANTUM CAT|Exercise QUESTION BANK|54 Videos
CI/ SI/ INSTALMENTS
QUANTUM CAT|Exercise QUESTION BANK |99 Videos

Similar Questions

Explore conceptually related problems

If the average marks of three batches of 55 , 60 and 45 students respectively is 50 , 55 and 60 , then what are the average marks of all the students ?

If the average age of 30 students is 40, what will be the average age of students, if age of each student is divided by 2?

If out of 10 selected students for an examination, 3 were of 20 years, age, 4 or 21 and 3 of 22 years, the average age of the group is

The average age of 25 men is 28 years. 5 new men of an average age of 25 years joined them. Find the average age of all the men together.

A coaching institute has students in 3 batches – X, Y and Z. In a certain examination, the average marks obtained by these batches are 72, 60 and 50 respectively. The average marks of batches X and Y taken together is 69. If the ratio of the number of students in batches Y and Z is 6 : 7, what is the average score of all the three batches put together? (a) 59 (b) 61.6 (c) 63.5 (d) 64.7 (e) 65

The average age of all the 20 students of a class is 24. The minimum age of a student is 18 and the maximum age of another student in the same class is 30 years. When the two students whose average age was 26 years resticted from the class but later on one of the resticated student was readmitted. Now the average age of the class is:

QUANTUM CAT-AVERAGES-QUESTION BANK

The average of 6 number 13, 17, 25, 11, 26, 10 is :
Text Solution
|
The average salary of 12 employees of STAR plus is Rs. 18,000 per mont...
Text Solution
|
The number of students at 4 IIM in morning batch, evening batch and we...
Text Solution
|
The average age of 7 members of Patel's family is 25 years. The averag...
Text Solution
|
The average age of all the 16 professors of Lucknow University is 52 y...
Text Solution
|
6 months a go the present age of the student of class 10th was 14 year...
Text Solution
|
The average age of Priyambada's family consisting of 5 members 3 years...
Text Solution
|
10 years a go the average age of all the 25 teachers of the girls coll...
Text Solution
|
The ratio of the ages of the father and the daughter at present is 3:1...
Text Solution
|
The average salary of rajesh, bahadur and amir is ₹ 8000 per month . T...
Text Solution
|
The average salary of A, B and C is ₹10000and average expenditure of A...
Text Solution
|
The average salary of A, B is Rs. 6000 and that of C, D and E is Rs. ...
Text Solution
|
The average of all the 60 employees in an office is ₹12000 per month ....
Text Solution
|
The average of all the 60 employees in an office is 12000 per month. i...
Text Solution
|
Einstein goes from Ahemdabad to lucknow at the speed of 40 km/hr and r...
Text Solution
|
Sri krishna took the chariot and started his journey from mathura to g...
Text Solution
|
A person goes from point P to point Q covergin 1/3 of the distance wit...
Text Solution
|
A man travels 200 km distance with the speed of 40 m/s and next 50 km ...
Text Solution
|
The average weight of all the 11 players of indian cricket team is 50k...
Text Solution
|
The average presence of students in a class on Monday Tuesday and Wedn...
Text Solution
|