CetKing One of the most misleading parts of the whole CAT experience is the process of reading the solution to a math problem in the Quant section. When you try the problem, you struggle, sweat, and go nowhere; when they explain the problem, they wave a snooty, know-it-all magic wand that clears everything up. But how … Read more
Rate questions, so far as I can remember, have been a staple of almost every standardized test ever. And, rest assured, dear reader, you will see them on the CAT. When dealing with a complex work question there are typically only two things we need to keep in mind, aside from our standard “rate * … Read more
There is a certain variety of questions that involve getting a bunch of numbers using permutation, and then doing some operations on the numbers we get. The questions can get a little overwhelming considering the sheer magnitude of the number of numbers involved! Let’s take a look at that concept today. We will explain it … Read more
The biggest challenge on many CAT questions is the strain they put on our working memory. Working memory, or our ability to process information that we hold temporarily, is by definition quite limited. It’s why phone numbers only contain seven digits – any more than that and most people wouldn’t be able to recall them. (Yes, … Read more
The most important aspect of a strengthen/weaken question on the CAT is “identifying the conclusion,” but sometimes, that may not be enough. Even after you identify the conclusion, you must ensure that you have understood it well. Today, we will discuss the “tricky conclusions.” First let’s take a look at some simple examples: Conclusion 1: A … Read more
There are lots of strategies and techniques discussed in books, in class and on blogs. But one thing that we seriously encourage our students to do (that they need to do on their own) is read more – fiction, non fiction, magazines (mind you, good quality), national dailies, etc. Reading high quality material helps one … Read more
Try the following question: For a certain art exhibit, a museum sold admission tickets to a group of 30 people every 5 minutes from 9:00 in the morning to 5:55 in the afternoon, inclusive. The price of a regular admission ticket was Rs.10 and the price of a student ticket was Rs.6. If on one … Read more
Example 1: If 10 workers complete a work in 5 days working 8 hours a day, how much work will be done by 6 workers in 10 days working 2 hours a day? Here is what it looks like: 10 workers……………..5 days …………….. 8 hours ……………1 work 6 workers………………10 days …………… 2 hours …………… … Read more
Pop quiz: 1) Your restaurant bill came to exactly Rs.64.00 and you want to leave a 20% tip. How much do you leave? 2) You’re running a charity half-marathon and your fundraising goal is Rs.6000. You’ve raised $3300. What percent of your goal have you reached? 3) Your Rs.20,000 investment is now worth Rs.35,000. By … Read more
There are two basic formulas that we already know: 1) Total = n(No Set) + n(Exactly one set) + n(Exactly two sets) + n(Exactly three sets) 2) Total = n(A) + n(B) + n(C) – n(A and B) – n(B and C) – n(C and A) + n(A and B and C) + n(No Set) … Read more
