Doubt in Maths

665 views 1 replies

Hi friends,

I saw many people involving in CA club trying to help others by clearing their doubts in problems for general questions etc.I m very much impressed to see the people who are really helping others.

Will anyone please help me out in finding the method of solution for these questions

1. The values of 4+ 1/ 4+ 1/ 4+ 1/ 4+.......2 (in chapter equations in QA)

2. If the sum of the roots of the quadratic equation ax^2+bx+c=0 is equal to the sum of the squares of their reciprocals then b^2/ac + bc/a^2 is equal to

3. The sum of two numbers is 45 and the mean proportional between them is 18. The numbers are

Anybody please help me in solving these questions, it will be very grateful to you.

Thank you

Replies (1)
These are just my method which I applied for CPT. The actual lengthy method might be different so please forgive my naïveté’s.
Q1.  4+1/4+1/4+1/4+2
1st calculate 1/6, u get .166667 and add this value to 4 and you will get 4.166667
Now again do 1/4.166667 and u get .23999 and add it to 4 u get 4.239999
Once more when you do 1/4.239999 u get .23584 which can be taken as .236
Therefore the answer here comes to 2 ± (root of) 5.
Q3. X+Y=45 and X, 18, Y are in G.P.
Therefore, 182=X.Y or X=324/Y
Now we get, 324/Y+Y=45 or rearranging, Y2-45Y+324=0
Solving the quadratic equation we get Y=9 or Y=36 and hence the two numbers are 9 and 36.

Leave a Reply

Your are not logged in . Please login to post replies

Click here to Login / Register  

Company
ARTICLESHIP 09 June 2026
Article Trainee

Numbertree LLP

Mumbai

CA Inter

View Details
Company
25 June 2026
AUDIT MANAGER

JDAS & ASSOCIATES

New Delhi

CA

View Details
Company
ARTICLESHIP 20 June 2026
Articleship

RB KESHRI & CO

Mumbai

B.Com

View Details
Company
20 June 2026
Chartered Accountant

ANV & Company

New Delhi

CA

View Details
Company
ARTICLESHIP 30 June 2026
Article Assistant or Paid Assistant

VIKAS VERMA & CO

New Delhi

Others

View Details
Company
09 June 2026
Accounts Associate

S Madan and CO

New Delhi

Graduate (Any)

View Details
Company
06 July 2026
Accountant

Agarwal Anoop and Associates

Noida

CA Final

View Details
Company
ARTICLESHIP 24 June 2026
ARTICLE ASSISTANT

BHUPINDER SHAH AND COMPANY

New Delhi

CA Inter

View Details