Home
Class 14
MATHS
The average marks obtained by a group of...

The average marks obtained by a group of 25 students was 29. One student left the group as a result of which the average of the remaining students rose to 29.5. Afterwards, another student came in as a result of which the average marks of the group dropped to 28.8. What is the average of the combined marks obtained by the student who left and the one who joined? Options are (a) 14 (b) 14.5 (c) 15 (d) 13.5 .

A

14

B

14.5

C

15

D

13.5

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Similar Questions

Explore conceptually related problems

If the average age of group of 5 students is 15. One new student joined the group, then average is increased by 1. Find the age of new student

What are the average marks obtained by all the students together in Science ?

The average of marks of 28 students in Mathematics was 50. Eight students left the school and then this average increased by 5. what is the average of marks obtained by the students who left the school ?