Average MCQs with Answers

If the average marks of 5 students is known and one student leaves the group, how is the new average calculated?

• A.Subtract the leaving student's marks from the total sum, then divide by 4
• B.Add the leaving student's marks to the total sum, then divide by 5
• C.Divide the total sum by 5 and subtract the leaving student's marks
• D.Multiply the average by 5, subtract the leaving student's marks, then divide by 5

If the sum of the quantities 1840 and their average is 115, then find the number of quantities?

• A.$15$
• B.$18$
• C.$16$
• D.$20$

The average of the first 10 even numbers is _?

• A.$10$
• B.$12$
• C.$11$
• D.$9$

Past Paper MCQ

If the average weight of 7 people is 70 kg, and one person weighing 80 kg is replaced by another person weighing 60 kg, what will the new average weight be?

• A.$67.14$ kg
• B.$68.57$ kg
• C.$65.71$ kg
• D.$70$ kg

A batsman makes a score of $87$ runs in the $17^{th}$ inning and thus increases his average by $1$. Find his average after the $17^{th}$ inning.

• A.$37$
• B.$38$
• C.$40$
• D.$39$

Annual rent of a house is Rs. 102,600. Find the average rent of the house for each month.

• A.Rs. 8,500
• B.Rs. 8,650
• C.Rs. 8,450
• D.Rs. 8,550

If the average of $10$, $k$ and $30$ is $21$, what is the value of $k$?

• A.$21$
• B.$25$
• C.$23$
• D.$27$

If the mean of 3 ages is $15$ and the ages of two persons are $10$ and $20$, what is the age of the third person?

• A.$10$
• B.$15$
• C.$20$
• D.$25$

What is the average of 7 consecutive odd numbers from 21 to 33?

• A.$25$
• B.$29$
• C.$27$
• D.$31$

What is the average of $15$, $14$, $13$, $12$, and $6$?

• A.$10$
• B.$12$
• C.$14$
• D.$15$