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Important Questions: Comparing Quantities - Class 7 MCQ


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10 Questions MCQ Test Mathematics (Maths) Class 7 - Important Questions: Comparing Quantities

Important Questions: Comparing Quantities for Class 7 2024 is part of Mathematics (Maths) Class 7 preparation. The Important Questions: Comparing Quantities questions and answers have been prepared according to the Class 7 exam syllabus.The Important Questions: Comparing Quantities MCQs are made for Class 7 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Important Questions: Comparing Quantities below.
Solutions of Important Questions: Comparing Quantities questions in English are available as part of our Mathematics (Maths) Class 7 for Class 7 & Important Questions: Comparing Quantities solutions in Hindi for Mathematics (Maths) Class 7 course. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free. Attempt Important Questions: Comparing Quantities | 10 questions in 20 minutes | Mock test for Class 7 preparation | Free important questions MCQ to study Mathematics (Maths) Class 7 for Class 7 Exam | Download free PDF with solutions
Important Questions: Comparing Quantities - Question 1
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What is the meaning of the term 'percentage'?

Detailed Solution for Important Questions: Comparing Quantities - 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
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If 30% of a number is 90, what is the original number?

Detailed Solution for Important Questions: Comparing Quantities - 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

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Important Questions: Comparing Quantities - Question 3
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Convert the fraction 3/4 to a percentage.

Detailed Solution for Important Questions: Comparing Quantities - Question 3

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

Important Questions: Comparing Quantities - Question 4
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A shopkeeper buys an item for ₹500 and sells it for ₹600. What is the profit percentage?
Detailed Solution for Important Questions: Comparing Quantities - 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
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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 for Important Questions: Comparing Quantities - Question 5

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

Important Questions: Comparing Quantities - Question 6
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What is the percentage increase if a quantity rises from 50 to 75?
Detailed Solution for Important Questions: Comparing Quantities - Question 6

Increase = 75 - 50 = 25

Percentage Increase = Increase/Original Quantity × 100

= 25/50 × 100 = 50%

Important Questions: Comparing Quantities - Question 7
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If 40% of a number is 80, what is 25% of the same number?
Detailed Solution for Important Questions: Comparing Quantities - Question 7

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

Important Questions: Comparing Quantities - Question 8
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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 for Important Questions: Comparing Quantities - 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
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If a number is increased by 25% and then decreased by 20%, what is the net percentage change?
Detailed Solution for Important Questions: Comparing Quantities - 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
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Convert 0.75 to a percentage.
Detailed Solution for Important Questions: Comparing Quantities - Question 10

To convert a decimal to a percentage, multiply by 100:
0.75×100=75%

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