Grade 7 Math: Percentage Questions Explained

by

Hey students! Aaj hum discuss karenge percentage se related kuch common questions jo aapko Grade 7 mein mil sakte hain. Percentage ka concept bahut easy hai, bas thoda practice ki zaroorat hoti hai. Chaliye, kuch examples ke saath samajhte hain!

1. Basics of Percentage

Sabse pehle, percentage ka matlab hai “per hundred.” Agar hum kehte hain 50%, iska matlab hai 50 out of 100. Ab hum kuch examples ke through seekhenge.

Example: If there are 100 students in a school, and 25 are girls, then girls ka percentage kya hoga?

  • Solution: (25/100) × 100 = 25%

2. Finding Percentage of a Given Number

Yahaan hum kisi bhi number ka percentage nikalna seekhenge.

Question: What is 20% of 150?

Solution:

  • 20% ka matlab hai 20 out of 100.
  • Ab hum multiply karenge: (20/100) × 150 = 30

Toh, 20% of 150 is 30.

3. Converting Fractions into Percentage

Kabhi-kabhi, humein fractions ko percentage mein convert karne ki zaroorat padti hai.

Question: Convert 3/4 into a percentage.

Solution:

  • (3/4) × 100 = 75%

Matlab, 3/4 is equal to 75%.

4. Finding What Percentage One Number is of Another

Yeh question type kaafi important hai!

Question: What percentage is 50 out of 200?

Solution:

  • (50/200) × 100 = 25%

Toh, 50 is 25% of 200.

5. Increase and Decrease in Percentage

Yeh real-life mein kaafi useful hai, jaise ki discount ya profit nikalne ke liye.

Question: A product’s price increased from ₹200 to ₹250. Find the percentage increase.

Solution:

  • Increase = ₹250 – ₹200 = ₹50
  • Percentage Increase = (50/200) × 100 = 25%

Iska matlab, price mein 25% ka increase hua hai.

6. Practice Questions

Aapke liye kuch practice questions:

  1. Find 30% of 80.
  2. Convert 2/5 into a percentage.
  3. A car’s price decreased from ₹500,000 to ₹450,000. What is the percentage decrease?
  4. What percentage is 75 out of 300?

Answers:

  1. 24
  2. 40%
  3. 10%
  4. 25%

Regular practice se aap percentage ke questions mein maahir ho jaoge. Happy learning! 😊

Here’s a tough percentage question to challenge you:

Question:

A shopkeeper bought a TV for ₹20,000. He sold it at a 25% profit. Later, the buyer sold the TV at a 20% loss. Find the final selling price of the TV.

Solution:

  1. Find the selling price by the shopkeeper:
  • Profit = 25% of ₹20,000 = (25/100) × 20,000 = ₹5,000
  • Selling Price = Cost Price + Profit = 20,000 + 5,000 = ₹25,000
  1. Find the selling price by the buyer:
  • Loss = 20% of ₹25,000 = (20/100) × 25,000 = ₹5,000
  • Final Selling Price = ₹25,000 – ₹5,000 = ₹20,000

Answer: The final selling price of the TV is ₹20,000.

Leave a comment