Hi Nimish,
The order or sequence of the subjects taken does not change the answer, but the values you take should be correct for any subject.

I hope this helps!

Hi. You can find basic of this topic under "Syllogisms" heading on this page:
https://cracku.in/cat/verbal-ability/miscellaneous?=video

Hope this helps.

B means that if anything in world is "uncertain", then one must consider it worthy of dying for.

Hi Sreelakshmi 
There is little chance to get this type of direct question, but its applications can be used as part of some other set.
Hope this Helps!

Hi Raghav Singla,
The question is asking to find the minimum number of citizens of Melhi who own at least one of three brands of Laptop.
From the Venn diagram and the values of citizens who own XP, Nell and Benovo we can infer that -
The number of people who own XP = 36 thousand, Nel = 29,000 and Benovo = 29,000
Therefore, we need to find the minimum number of citizens who own at least one of three brands of laptop and that will be the minimum value of
l +m + p = 17000 (36-19 =17)

m + n +q = 10000  (29-19 = 10)

p + q + o = 10000  (29 - 19 = 10)

Adding all three we get,
(l + n + o) + 2*(m + p + q) = 37000
We need to calculate the minimum value of l+m+n+o+p+q+19, that will be when l+n+0 will be zero. In that case, m+p+q will be the maximum, and we need to maximise m+p+q because it is multiplied by 2, and thus the overall value of l+m+n+o+p+q+19 will be less.
So, m + p + q = 18500
So, required answer = 18500 + 19000 = 37500
Hence, option B is the right answer.
I hope this helps!

Hi Asher Thomas Babu,
In these types of questions, first, draw the Venn diagram and try to fill in all the information that is given and then assume different variables to find out the remaining values by applying the conditions that are given in the question.
In this set, can you please let us know in which part of the calculation in the Venn diagram you are facing problems in understanding the approach so that I can help you better?
Regards