April 17th, 2019 by Ravi Handa

A pipe is connected to a tank or cistern. It is used to fill or empty the tank; accordingly, it is called an inlet or an outlet.
Inlet:Â A pipe which is connected to fill a tank is known as an inlet.
Outlet:Â A pipe which is connected to empty a tank is known as an outlet.
Problems on pipes and cisterns are similar to problems on time and work. In pipes and cistern problems, the amount of work done is the part of the tank of filled or emptied. And, the time taken to do a piece of work is the time take to fill or empty a tank completely or to a desired level.
Pipes and Cisterns Po

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Posted in CAT, Quant Funda

April 16th, 2019 by Ravi Handa

Letâ€™s talk about one of the trickiest parts of critical reasoning- Identifying strong and weak arguments. Sounds tricky? Well, itâ€™s also one of the most scoring and time-saving parts of CAT. So, how can you ace this section of exam? You just need to learn a few fundamental concepts and invest sufficient amount of time in practice. Eventually, you will be able to tackle these questions with more confidence and a good degree of accuracy. But, what exactly is an argument?
An argument is basically a combination of three things:
Facts/Claims
Assumptions/Reasons/Evidence
Conclu

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Posted in CAT

April 15th, 2019 by Ravi Handa

Figuring out the last digit is the same as figuring out the remainder of a number when divided by 10, but I guess you already know that. Figuring out the last two digits is the same as figuring out the remainder of a number when divided by 100. However, if you wish to figure the remainder when the divisor is not 10 or 100, I suggest you read on.
Funda 1 of Remainders:Â
Basic idea of remainders can be used to solve complicated problems.
There is nothing special or unique about this idea. At first glance it seems like something really obvious. But it is it

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Posted in CAT, IBPS, IIFT, Quant Funda, SBI, SNAP, XAT

April 12th, 2019 by Ravi Handa

Sequential output is basically output of a machine which is working on a fixed sequence. We start with an input and following a fixed pattern or sequence machine gives us the final output. In these type of questions, we observe that input output process in different steps and try to find out the pattern and sequence on which the machine is working.
Importance from exam point of view â€“ These questions looks dangerous but actually these are scoring questions in exams, it doesnâ€™t take much time in solving.
Pattern of questions- In all type of questions, there is a sequence given but somet

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Posted in CAT, MBA

April 11th, 2019 by Ravi Handa

The questions on Mixtures and Alligations are asked repeatedly in CAT and keeping the past year trends in mind, one or two questions are asked every year. We have seen the concept used in some of the Data Interpretation questions as well, so this cannot be overlooked.Â Let us begin with the subject matter on this topic.
When we have to find the average of a given set of values, we just add those values and divide by the number of values in consideration.Â But what do we do when we have to find the average of 2 given sets of values, each containing different number of elements? We use

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Posted in CAT, IIFT, MBA, SNAP, XAT

April 10th, 2019 by Ravi Handa

The concepts of Set Theory are applicable not only in Quant / DI / LR but they can be used to solve syllogism questions as well. Let us first understand the basics of the Venn Diagram before we move on to the concept of maximum and minimum. A large number of students get confused in this so I have listed out each area separately.
A venn diagram is used to visually represent the relationship between various sets.
What do each of the areas in the figure represent?
I â€“ only A;
II â€“ A and B but not C;
III â€“ Only B;
IV â€“ A and C but not B;
V â€“ A and B and

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Posted in Bank PO, CAT, LR DI Funda, MBA

April 9th, 2019 by Ravi Handa

Quadratic Equations are first taught to us in 6th or 7th class and most of us are able to score good marks in it because we are able to solve 90% of the questions by just using that formula. And that formula is:
The above formula gives us the roots of the quadratic equation ax2 + bx + c = 0
For this post, I am assuming that you are aware of the basics of quadratic equations and know how to use the above mentioned formula. In case you are not, spending five minutes on the wiki page of Quadratic Equations wonâ€™t hurt. Wikipedia can be daunting at times, so come back here as soon a

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Posted in CAT, IBPS, IIFT, Quant Funda, SBI, SNAP, XAT

April 8th, 2019 by Ravi Handa

During discussion of a current affair issue with a friend, I found the below couple of excerpts that instigated to think what I understood from the complete issue and how it can be fit on logical ground from the selection itself are though similar but cannot be handled in the same way. It is applicable for all types of reading. And when logic comes into the picture then with it, it brings premise, conclusion, assumption and argument as a whole.
Example-1
â€œUS and Pakistan continue to partner on a range of national security issues. President Donald Trumpâ€™s administration appears re

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Posted in CAT, IIFT, MBA, SNAP, XAT, XAT Funda

April 7th, 2019 by Ravi Handa

Nowadays, everything revolves around data, all major decisions are made by first collecting the mass information and then analyzing the raw data. Whether it may be a small firm, a giant MNC or governments all rely on the inferences made on this massive data. Thus, we cannot undermine the resourcefulness and significance of data. But mere collecting data is not sufficient. You have to consider that while collecting the data all the relevant information required to make inferences is covered otherwise the whole exercise of collecting and interpretation of the data proves to be a futile activit

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Posted in CAT, LR DI Funda

April 6th, 2019 by Ravi Handa

Blood relations are of considerable part of CAT and other MBA entrance exams. Around 3-4 questions make up its logical reasoning section. This topic is a scoring one if you are smooth with the understanding of family relations and family tree otherwise it can prove to be messy, confusing and time consuming. In recent times, we are most likely been detached with our family members and most live in nuclear families unlike in past times when the concept of Joint Families was an apparent part of our lifestyle. Thus, most of us hardly possess the idea of how family relations are intertwined and

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Posted in CAT