ICSE Class 8 Maths Selina Solutions Chapter 7 Percent and Percentage

Question 8.

A cistern contains 5 thousand liters of water. If 6% water is leaked. Find how many liters of water are left in the cistern.

Solution:

Water in the cistern = 5000 liters The quantity of water leaked Quantity of water left in the cistern = (5000 – 300) liters = 4700 liters

Question 9.

A man spends 87% of his salary. If he saves Rs. 325; find his salary.

Solution:

Let salary =Rs x

Question 10.

(i) A number 3.625 is wrongly read as 3.265; find the percentage error.

Solution:

Correct number =3.625 The number wrongly read as =3.265 Error =3.625-3.265=0.360

Question 11.

In an election between two candidates, one candidate secured 58% of the votes polled and won the election by 18,336 votes. Find the total number of votes polled and the votes secured by each candidate.

Solution:

Since the winning candidate secured 58% of the votes polled. ∴ Losing candidate secured = (100-58)% of the votes polled  = 42% of the votes polled Difference of votes =58-42 =16% of the votes polled We are given: 16% of votes polled = 18,336

Question 12.

In an election between two candidates, one candidate secured 47% of votes polled and lost the election by 12,366 votes. Find the total votes and die votes secured by the winning candidate.

Solution:

Since the losing candidate secured 47% of the votes polled Winning candidate secures votes = (100-47)% of the votes polled = 53 % of the votes polled Difference of votes =53-47 =6 % of the votes polled We are given: 6% of the votes polled =12,366

Benefits of ICSE Class 8 Maths Selina Solutions Chapter 7

The Selina Solutions for ICSE Class 8 Maths Chapter 7 offer several benefits:

Comprehensive Coverage : The solutions are designed to cover the entire syllabus comprehensively, ensuring that students grasp all concepts related to percentages thoroughly.

Clarity and Understanding : Each solution is structured to provide clear explanations and step-by-step solutions, helping students understand the underlying concepts easily.

Practice and Application : The solutions include a variety of practice questions that enable students to apply the concepts learned in different scenarios, reinforcing their understanding through practice.

Exam Preparation : By providing solutions to both textbook exercises and additional questions, these solutions aid students in preparing effectively for exams, familiarizing them with the types of questions they may encounter.

Self-Study Aid : They serve as an excellent resource for self-study, allowing students to independently review and consolidate their knowledge of percentages.

Accuracy and Reliability : Developed by experts in the subject, the solutions ensure accuracy and reliability, thereby building confidence in students regarding their understanding of percentages.

Additional Resources : Often, these solutions include extra tips, shortcuts, and alternative methods to solve problems, enriching students' problem-solving skills beyond what's typically covered in the textbook.

ICSE Class 8 Maths Selina Solutions Chapter wise List
Chapter 1 Rational Numbers	Chapter 10 Direct and Inverse Variations
Chapter 2 Exponents Powers	Chapter 11 Algebraic Expressions
Chapter 3 Squares and Square Roots	Chapter 12 Algebraic Identities
Chapter 4 Cubes and Cube Roots	Chapter 13 Factorisation
Chapter 5 Playing With Number	Chapter 14 Linear Equations in One Variable
Chapter 6 Sets	Chapter 15 Linear Inequations
Chapter 7 Percent and Percentage	Chapter 16 Understanding Shapes
Chapter 8 Profit Loss and Discount	Chapter 17 Special Types of Quadrilaterals
Chapter 9 Simple and Compound Interest	Chapter 18 Constructions
Chapter 19 Representing 3D in 2D	Chapter 21 Surface Area, Volume and Capacity
Chapter 20 Area of Trapezium and Polygon	Chapter 22 Data Handling