My Learning Cart
?
Categories
Account

A certain city has a population of 200,000. If the population decreases by 10% i

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

What’s inside this PDF?

Question: A certain city has a population of 200,000. If the population decreases by 10% in one year, what will be the population at the end of the year? (2020)

Options:

  1. 180,000
  2. 190,000
  3. 200,000
  4. 210,000

Correct Answer: 180,000

Exam Year: 2020

Solution: 

Population after decrease = 200,000 * (1 - 0.10) = 200,000 * 0.90 = 180,000.

A certain city has a population of 200,000. If the population decreases by 10% i

Practice Questions

Q1
A certain city has a population of 200,000. If the population decreases by 10% in one year, what will be the population at the end of the year? (2020)
  1. 180,000
  2. 190,000
  3. 200,000
  4. 210,000

Questions & Step-by-Step Solutions

A certain city has a population of 200,000. If the population decreases by 10% in one year, what will be the population at the end of the year? (2020)
  • Step 1: Start with the initial population of the city, which is 200,000.
  • Step 2: Determine the percentage decrease, which is 10%.
  • Step 3: Convert the percentage decrease into a decimal by dividing by 100. So, 10% becomes 0.10.
  • Step 4: Calculate the amount of the decrease by multiplying the initial population by the decimal. This is 200,000 * 0.10.
  • Step 5: Perform the multiplication: 200,000 * 0.10 = 20,000. This is the amount the population decreases.
  • Step 6: Subtract the decrease from the initial population to find the new population. This is 200,000 - 20,000.
  • Step 7: Perform the subtraction: 200,000 - 20,000 = 180,000.
  • Step 8: The population at the end of the year is 180,000.
  • Percentage Decrease – Understanding how to calculate a percentage decrease from a total population.
  • Basic Arithmetic – Applying multiplication to find the new population after a decrease.
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