Class 8 Exam > Class 8 Questions > The age of hari and harry are in the ratio 5:...
Start Learning for Free
The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.?
Most Upvoted Answer
The age of hari and harry are in the ratio 5:7 . Four years from now t...
Therefore , the ratio of= 5:7
According to question , 5x +4
and 7x+4=3=4
=4(5x+4)=3(7x+4)
=20x+16=21×+12
=-20x-21x=12-16
=-x=-4
=x=4
hence the age of hari =5x=5×4=20years
and the age of harry=7x=7x4=28years
According to question , 5x +4
and 7x+4=3=4
=4(5x+4)=3(7x+4)
=20x+16=21×+12
=-20x-21x=12-16
=-x=-4
=x=4
hence the age of hari =5x=5×4=20years
and the age of harry=7x=7x4=28years
Community Answer
The age of hari and harry are in the ratio 5:7 . Four years from now t...
Understanding the Problem:
Given:
- Ratio of Hari's age to Harry's age = 5:7
- In 4 years, the ratio of their ages will be 3:4
Let's assume the present age of Hari and Harry as 5x and 7x respectively.
Setting up Equations:
According to the given ratio,
Hari's age = 5x
Harry's age = 7x
After 4 years,
Hari's age = 5x + 4
Harry's age = 7x + 4
As per the second ratio,
(Hari's age + 4) / (Harry's age + 4) = 3/4
(5x + 4) / (7x + 4) = 3/4
Solving this equation will give us the value of x.
Solving the Equations:
(5x + 4) / (7x + 4) = 3/4
=> 4(5x + 4) = 3(7x + 4)
=> 20x + 16 = 21x + 12
=> 4x = 4
=> x = 1
Finding Present Ages:
Hari's present age = 5x = 5 * 1 = 5 years
Harry's present age = 7x = 7 * 1 = 7 years
Therefore, the present age of Hari is 5 years and the present age of Harry is 7 years.
Given:
- Ratio of Hari's age to Harry's age = 5:7
- In 4 years, the ratio of their ages will be 3:4
Let's assume the present age of Hari and Harry as 5x and 7x respectively.
Setting up Equations:
According to the given ratio,
Hari's age = 5x
Harry's age = 7x
After 4 years,
Hari's age = 5x + 4
Harry's age = 7x + 4
As per the second ratio,
(Hari's age + 4) / (Harry's age + 4) = 3/4
(5x + 4) / (7x + 4) = 3/4
Solving this equation will give us the value of x.
Solving the Equations:
(5x + 4) / (7x + 4) = 3/4
=> 4(5x + 4) = 3(7x + 4)
=> 20x + 16 = 21x + 12
=> 4x = 4
=> x = 1
Finding Present Ages:
Hari's present age = 5x = 5 * 1 = 5 years
Harry's present age = 7x = 7 * 1 = 7 years
Therefore, the present age of Hari is 5 years and the present age of Harry is 7 years.
Attention Class 8 Students!
To make sure you are not studying endlessly, EduRev has designed Class 8 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 8.
|
Explore Courses for Class 8 exam
|
|
Similar Class 8 Doubts
Top Courses for Class 8View all
The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.?
Question Description
The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.?.
The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.? for Class 8 2024 is part of Class 8 preparation. The Question and answers have been prepared according to the Class 8 exam syllabus. Information about The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.? covers all topics & solutions for Class 8 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.?.
Solutions for The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.? in English & in Hindi are available as part of our courses for Class 8.
Download more important topics, notes, lectures and mock test series for Class 8 Exam by signing up for free.
Here you can find the meaning of The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.? defined & explained in the simplest way possible. Besides giving the explanation of
The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.?, a detailed solution for The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.? has been provided alongside types of The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.? theory, EduRev gives you an
ample number of questions to practice The age of hari and harry are in the ratio 5:7 . Four years from now the ratio of their ages will be 3:4 find their present ages.? tests, examples and also practice Class 8 tests.
|
|
Explore Courses for Class 8 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup