Latest TCS Aptitude Question SOLUTION: 1) If we subtract a number with y, we get 4 increase of number, once it got divided by y itself... Find that number??

• Placement Papers
• /
• TCS
• /
• Programming
• /
• Definition

TCS Question Papers: TCS Interview Experience(91) TCS Company Profile

(#M40002286) TCS Programming question Keep an EYE

1) If we subtract a number with y, we get 4 increase of number, once it got divided by y itself... Find that number??

Solution

according to the given condition
x-y=4+(x/y)
we need to work with the options here.
subs x = 12 first
12-y=4+(12/y)
solving this eq, we get y=6,2 so the number x will be 12 with y = 2,6
this answer is given by MONISHA and VADIVELAN M and is correct answer


Like manish sir answer on facebook.

Asked In TCS safia (13 years ago)

Solved Read Solution (3)

Is this Puzzle helpful?   (35)   (6) Submit Your Solution Definition

Read Solution (3) :

Rajeev Dubey  (13 years ago)

y-n=n+4,y=2n+4,then we get=n/2n+4

Is this solution Helpfull? Yes (5) | No (42)  

Bhanuprakash Nayak  (12 years ago)

Reduce the equation to General form ax2+bx+c=0:
Taking the unknown number as 'n',

n-y=4+(n/y)

y2+(4-n)y+n=0

We know the solution for this which is: x1 = -b+sqrt(b2-4ac)]/2a and
x2 = -b-sqrt(b2-4ac)]/2a

So the term inside the square root should be a perfect square.
(Otherwise we get answer for y as fraction)
In this case:

sqrt(b2-4ac)= sqrt[(4-n)^2-4n]

Now you got the General eq:Check all the answers now,
This will be easier because you don't have to derive the equation for all the four options, so you time is saved.

For 12 we get sqrt(16)=4.
Which is not fraction.

Is this solution Helpfull? Yes (3) | No (7)  

Kethineni Vinodh  (10 years ago)

x-y=4+(x/y)
we need to work with the options here.
subs 12 first
12-y=4+(12/y)
solving this eq, we get y=6
this satisfies the given condition

Is this solution Helpfull? Yes (2) | No (1)  

Please Login to Read Solution.