India's Largest Education Online Store: StudyNeeds.com  |  For questions call: 011-456-293-45  |  Log In Here  |  Create Free Account
 
  • when we increase both the numerator and denominator by 7, a fraction changes to 3/4. Find the original fraction.
    I was able to solve this question from the answers given. But I also wanted to know how to solve from the question itself:  (x+7)/(y+7)=3/4 and by cross multiplying I get 4x=3y+7. How to get x/y from here?
    Asked by  6 months ago
     
 
 

Answers (1)

 
  • By , 6 months ago
    Equation is 4x - 3y = -7
    Now, there are two variables and one equation. So, finding the unique solution is impossible.
    Therefore, we will focus on options and check it  out  which option is satisfying it.
 
 
 
 

Would like to comment ?

 
 
 
Largest Education Online Store - StudyNeeds.com  |  IIT & AIEEE  |  AIPMT, AIIMS & AFMC  |  CA-CPT  |  BBA, BBS & BBE  |  CLAT  |  CAT  |  Bank PO  |  GRE  |  GMAT  |  Career Guidance

© 2011 Prism Education Private Limited. All rights Reserved.