In today's scheduling test question...why can't we have 10-11 number system .... because it's mentioned that two different subjects should be there between no. system and modern maths..?

It can be? Even in the solution it says so. 9-11 if its a 2 hr lecture, 9-10 if its a one hr lecture.

Check the solution, 10-11 can be either NS or Geometry!

The coordinates of the midpoint of the join of A(2, 1) and B(1, -3) are (x, y). Then, the value of 6x + y - 8 is

The answer will be 0. Get the midpoints((x1 + x2)/2, where x1 and x2 are the 2 extreme x co-ordinates. Same goes for y.) and put the values in the required equation.

Do you guys feel Cracku is setting up the bar too high in terms of difficulty in the DILR sectionals?

Looking at the trend of difficulty in past year CATs in LRDI section, I feel that is the right call to make LRDI as tough and novel as possible.(If you want, you can compare LRDI section of CAT 2018vs2019vs2020)

LRDI and VARC seem to be good in mocks while Quants questions are way longer than actual CAT

Hello, can you please share your strategy for quant when the section goes tough? I am able to score well in medium LOD but I think even the paper is tough, i am still trying to maximize my attempts and that too in hurry, so it costs me the accurcay also!Please share your advice about dealing with QA esp when the paper is lil tough?

Skipping questions. This is the most important thing everyone forgets. If it is tough it is tough for majority of the students. So try to score where you are strong. Skip questions where you are kind of weak and finish remaining. once you attempt all the easy questions then come back for the tough ones

A B and C complete a work respectively in 36 days.54days and 72 days all the three start together. 8days before complete A left the work 12 days before completing B. left it C did the work for

Take LCM of 36,54 and 72 which comes out to be 216 assume this as total work Now Efficiency of A,B,C is 6,4,3 units respectively Let C work for X days then total units produced by C is 3X Similarily Total units produced by A and B is 6(X-8) and 4(X-12) as they worked 8 and 12 days less than C Now Total work is 3X+6X-48+4X-48=216 13X=216+96 X= 312/13 X= 24 thus C works for 24 days