1. Finding the Percentage – 25 out of 1000

Question:
What percentage is 25 out of 1000?

Solving Trick:
Use the formula:
Percentage = (amount ÷ Total amount) × 100

 Percentage of Marks Scored

Question:
Sarah got 42 marks out of 50. What percentage did she score?

Solving Trick:
(42 ÷ 50) × 100

Percentage of Money Saved

Question:
Ali had ₹500. He spent ₹375. What percentage of his money did he spend?

Solving Trick:
(375 ÷ 500) × 100

Percentage of Students

Question:
There are 80 students in a class. 60 are girls. What percentage of the class are girls?

Solving Trick:
(60 ÷ 80) × 100

Finding Total from a Given Percentage

Question:
20% of what number is 60?

Solving Trick:
Use reverse method:
(20 ÷ 100) × ? = 60

Percentage Discount

Question:
A toy costs ₹800. It is sold at 25% discount. What is the discount amount?

Solving Trick:
25% of 800 = (25 ÷ 100) × 800 =

Increase by a Percentage

Question:
A population of a village is 4,000. It increased by 10%. What is the new population?

Solving Trick:
10% of 4000 = 400
New population = 4000 + 400 =

Decrease by a Percentage

Question:
A shirt costs ₹1200. It is sold after a 20% decrease. What is the new price?

Solving Trick:
20% of 1200 = 240
New price = 1200 – 240 =

Percentage of Time Spent

Question:
Sara studied for 3 hours out of her total 6-hour day. What percentage of her time did she spend studying?

Solving Trick:
(3 ÷ 6) × 100 =

Percentage of Apples Sold

Question:
A fruit seller had 500 apples. He sold 80% of them. How many apples are left?

Solving Trick:
80% of 500 = (80 ÷ 100) × 500 = 400
Apples left = 500 − 400 =