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Important Questions: Comparing Quantities - Free MCQ Test with solutions


MCQ Practice Test & Solutions: Important Questions: Comparing Quantities (10 Questions)

You can prepare effectively for Class 7 Mathematics (Maths) Class 7 (Old NCERT) with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Important Questions: Comparing Quantities". These 10 questions have been designed by the experts with the latest curriculum of Class 7 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 20 minutes
  • - Number of Questions: 10

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Important Questions: Comparing Quantities - Question 1

What is the meaning of the term 'percentage'?

Detailed Solution: Question 1

A percentage represents a fraction where the denominator is 100. It is a way to express a number as a part of a whole divided into 100 equal parts.

Important Questions: Comparing Quantities - Question 2

If 30% of a number is 90, what is the original number?

Detailed Solution: Question 2

Let the original number be x. Then, 30% of x is 90:

30/100 × x = 90

0.3x = 90

x = 90/0.3 = 300

Important Questions: Comparing Quantities - Question 3

Convert the fraction 3/4 to a percentage.

Detailed Solution: Question 3

To convert a fraction to a percentage, multiply it by 100:
3/4 × 100 = 75%

Important Questions: Comparing Quantities - Question 4

A shopkeeper buys an item for ₹500 and sells it for ₹600. What is the profit percentage?

Detailed Solution: Question 4

Profit = Selling Price (SP) - Cost Price (CP) = ₹600 - ₹500 = ₹100

Profit Percentage = Profit/CP × 100 = 100/500 × 100 = 20%

Important Questions: Comparing Quantities - Question 5

If the simple interest on a sum of money for 2 years at 5% per annum is ₹200, what is the principal amount?

Detailed Solution: Question 5

Simple Interest (SI) = 
Given SI = ₹200, R = 5%, T = 2 years

Important Questions: Comparing Quantities - Question 6

What is the percentage increase if a quantity rises from 50 to 75?

Detailed Solution: Question 6

Increase = 75 - 50 = 25

Percentage Increase = Increase/Original Quantity × 100

= 25/50 × 100 = 50%

Important Questions: Comparing Quantities - Question 7

If 40% of a number is 80, what is 25% of the same number?

Detailed Solution: Question 7

Let the number be x. Then, 40% of x is 80:

Important Questions: Comparing Quantities - Question 8

A person borrowed ₹10,000 at an annual simple interest rate of 8% for 3 years. What is the total amount to be repaid after 3 years?

Detailed Solution: Question 8

Principal (P) = ₹10,000, Rate (R) = 8%, Time (T) = 3 years
Simple Interest (SI) =  
Total Amount = Principal + Interest = ₹10,000 + ₹2,400 = ₹12,400

Important Questions: Comparing Quantities - Question 9

If a number is increased by 25% and then decreased by 20%, what is the net percentage change?

Detailed Solution: Question 9

Let the original number be 100.

After a 25% increase: 100 + 25 = 125

After a 20% decrease: 125 - 20% of 125 = 125 - 25 = 100

Net change = 100 - 100 = 0%

Important Questions: Comparing Quantities - Question 10

Convert 0.75 to a percentage.

Detailed Solution: Question 10

To convert the decimal 0.75 to a percentage, follow these steps:

  • Multiply the decimal by 100.
  • This calculation is: 0.75 × 100.
  • The result is 75%.

Therefore, the correct answer is 75%.

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