Alerts Wishlist Cart

A class has 30 students, and 40% of them are girls. How many boys are there in t

Practice Questions

Q1
A class has 30 students, and 40% of them are girls. How many boys are there in the class? (2023)
  1. 12
  2. 18
  3. 20
  4. 24

Questions & Step-by-Step Solutions

A class has 30 students, and 40% of them are girls. How many boys are there in the class? (2023)
  • Step 1: Find out how many girls are in the class by calculating 40% of 30 students.
  • Step 2: To calculate 40% of 30, multiply 30 by 0.40 (which is the decimal form of 40%).
  • Step 3: The result of the multiplication gives you the number of girls in the class.
  • Step 4: Subtract the number of girls from the total number of students (30) to find the number of boys.
  • Percentage Calculation – Understanding how to calculate a percentage of a total number.
  • Basic Arithmetic – Performing simple subtraction to find the remaining quantity after calculating a part.
Biology (School & UG)
Biology (School & UG)
Chemistry (School & UG)
Chemistry (School & UG)
Civil Engineering
Civil Engineering
Commerce & Accountancy
Commerce & Accountancy
Computer Science & IT
Computer Science & IT
Current Affairs & GK
Current Affairs & GK
Data Structures & Algorithms
Data Structures & Algorithms
eBooks
eBooks
Electrical & Electronics Engineering
Electrical & Electronics Engineering
English (School)
English (School)
General Aptitude
General Aptitude
General Knowledge
General Knowledge
General Knowledge & Current Affairs
General Knowledge & Current Affairs
Languages & Literature
Languages & Literature
Law & Legal Studies
Law & Legal Studies
Major Competitive Exams
Major Competitive Exams
Mathematics (School)
Mathematics (School)
Mechanical Engineering
Mechanical Engineering
Medical Science
Medical Science
Physics (School & Undergraduate)
Physics (School & Undergraduate)
Quantitative Aptitude & Reasoning
Quantitative Aptitude & Reasoning
Social Science (School)
Social Science (School)
Technical
Technical
Verbal and Reasoning
Verbal and Reasoning
Vocational & Skill Development
Vocational & Skill Development
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely