Login / Signup

Question

The average age of 10 students is 20. If the teacher’s age is included, the average rises by 2. Find teacher’s age.

A 32 yrs

B 42 yrs

C 22 yrs

D 36 yrs

Practice Next

More Average Questions

The average age of a group of persons going for tour to Shimla is 22 years. 25 new persons with an average age of 10 years join the group and their average...
The average age of 18 children and their teacher's age are 15 years. If the teacher's age is excluded, the average reduces by 2. What is the teacher's age?
There are two sections A and B of a class, consisting of 38 and 42 students, respectively. If the average weight of the students of section A is 55 kg and ...
The average weight of 35 boxes is 24.8 kg. After removing 5 boxes, the average weight becomes 26.1 kg. Find the average weight of the boxes that were remov...
The average weight of 70 notebooks kept in a box is 7 kg. When a new notebook is placed in the box, then the average is 7.1kg. Specify the weight of the ne...
The average marks of 30 students in Class I is 60. The average marks of some students in Class II is 75. When all students of both classes are taken togeth...
Three numbers are given such that when the average of any two numbers is added to the third number, the resulting sums are 250, 240, and 230. Determine the...
The average cost price of 13 pens (having equal cost price) decreased by Rs.3, when one of the pen is replaced by a new pen having cost price of Rs.60. Fin...
A number is such that when it is multiplied by 4, it gives another number which is as much above from 180 as the original number (itself) is below 180. The...
The average of four numbers is 58. When four more numbers are included, the average increases by 4. Find the average of the numbers included.

Hey! Ask a query

ask-question