Solution of CAT 2018-2017 unacademy By:- Harpreet Kaur PROFILE LINK https://unacademy.com/user/harpreet9504

Q:- Two straight lines intersect at a point O. Points Aj, A2, A ,.A are Bn on the other . If taken on one line and points B,, B,, B3, the point O is not included, the number of triangles that can be drawn using these points as vertices, is? Sol:- To tal As Az mtm 6u 3

Q:- A group of workers was put on a job. From the second day onwards, one worker was withdrawn each dav. The iob was finished when the last worker was withdrawn. Had no worker been withdrawn at any stage, the group would have finished the job in 55% of the time. How many workers were there in the group '? Sol:- 1st da n nn its then n-z , n- 3 Total Units - Ci 2 +3+ Hncl daj - n- 4, 3, 2, 1

Q:- A group of workers was put on a job. From the second day onwards, one worker was withdrawn each dav. The iob was finished when the last worker was withdrawn. Had no worker been withdrawn at any stage, the group would have finished the job in 55% of the time. How many workers were there in the group '? Sol:- |J no one left then 1 da wah's nnnits One daq worh 55%ofn n+1 =

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Akila N

7 months ago

why should we consider square of modulus,will not modulus itself be sufficient?

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Shivam PARASHAR

7 months ago

See,in quantum the particle(which we intended to find )is spread all over the space .so what we do ,we start confining our space to

Shivam PARASHAR

7 months ago

Confining our space(i.e normalisation) to get the max probability

Shivam PARASHAR

7 months ago

Or more specific -probability density i.e modulus square

Shivam PARASHAR

7 months ago

For example - |x| graph is like-. \|/ ie you get values in both postive and negative

Shivam PARASHAR

7 months ago

But if you square it - you will only get +ve values thus confine the space more and increase the chances of finding the particle

Akila N

7 months ago

In mod x how do we get negative values sir.. and if its squared the number is large eg. probability 5 would be better confined than 25 right..sorry i did not get..can u pls elaborate?thank u

Shivam PARASHAR

7 months ago

Soory i m unable to get you full comment

Shivam PARASHAR

7 months ago

Their is something wrong with this comments section

Shivam PARASHAR

7 months ago

Still i had read first two lines

Shivam PARASHAR

7 months ago

Yes you are right .. mod x square has larger values ..that means strong possibility of finding the particle

Shivam PARASHAR

7 months ago

Connect me on some other platform!!?!

Akila N

7 months ago

if you could leave mail id;I shall mail to it

Shivam PARASHAR

7 months ago

parasharshivam255@ymail.com

Akila N

6 months ago

thank u sir