My Learning Cart
?
Categories
Account

A group of friends has an average age of 25 years. If one friend aged 30 leaves

₹0.0
Login to Download
  • 📥 Instant PDF Download
  • ♾ Lifetime Access
  • 🛡 Secure & Original Content

What’s inside this PDF?

Question: A group of friends has an average age of 25 years. If one friend aged 30 leaves the group, what will be the new average age if the group originally had 5 friends?

Options:

  1. 24
  2. 25
  3. 26
  4. 27

Correct Answer: 25

Solution: 

Total age = 5 * 25 = 125. New total age = 125 - 30 = 95. New average = 95 / 4 = 23.75.

A group of friends has an average age of 25 years. If one friend aged 30 leaves

Practice Questions

Q1
A group of friends has an average age of 25 years. If one friend aged 30 leaves the group, what will be the new average age if the group originally had 5 friends?
  1. 24
  2. 25
  3. 26
  4. 27

Questions & Step-by-Step Solutions

A group of friends has an average age of 25 years. If one friend aged 30 leaves the group, what will be the new average age if the group originally had 5 friends?
  • Step 1: Calculate the total age of the group. Since the average age is 25 years and there are 5 friends, multiply 25 by 5. Total age = 25 * 5 = 125.
  • Step 2: One friend aged 30 leaves the group. Subtract 30 from the total age. New total age = 125 - 30 = 95.
  • Step 3: Now, there are 4 friends left in the group. To find the new average age, divide the new total age by the number of friends left. New average = 95 / 4.
  • Step 4: Calculate 95 divided by 4. New average = 23.75.
  • Average Calculation – Understanding how to calculate the average age based on total age and number of individuals.
  • Impact of Removing an Individual – Analyzing how the removal of an individual affects the overall average.
  • Basic Arithmetic Operations – Applying addition, subtraction, and division to solve the problem.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely
Home Practice Performance eBooks