Word Problems that can be solved using Quadratic Equation Techniques

August 17th, 2020 by

In the quadratic equations word problems, the equations wouldn’t be given directly, in fact, you have to deduct the equation from the given facts within the equations. There could be many different traits of question which can even include all the linear equations type questions into the quadratic form. It can also include profit maximization or loss minimization questions in which you have to find either minimum or maximum value of the equation. Here are a few examples of the word problems in quadratic equations: Example 1: Four friends have some coins. Pavan has 2 less than Samir,


Circular Races Questions for CAT Exam

August 13th, 2020 by

1. In a circular race of 1200m, A and B start from the same point and at the same time with speeds of 27km/hr and 45km/hr respectively. Find when will they meet again for the first time on the track when they are running i) In the same direction ii) In the opposite directions. Sol: Length of the track, L =1200m Speed of A= 27 x 5/18 = 7.5m/s Speed of B= 45 x 5/18 = 12.5m/s i) Same direction: Time = L/(Relative Speed)=1200/((12.5-7.5)) = 240 seconds ii) Opposite direction: Time= L/(Relative Speed)= 1200/((12.5+7.5))= 60 seconds It is a simple formula based question, in


Linear Races Questions for CAT Exam

August 9th, 2020 by

1. In a race of 1000m, A beats B by 50m or 5 seconds. Find: B’s speed A’s speed Time is taken by A to complete the race Sol: Since A beats B by 50m. It means by the time A reaches the winning point, B is 50 m away and as A beats B by 5 seconds, it means B takes another 5 seconds to reach the winning point. This means B covers 50m in 5 seconds i.e., B’s speed is 50/5 = 10m/s. Since A wins by 50m, in the time A covers 1000m, B covers 950m in 95 seconds (950/10). Hence A will take 95 seconds to cover 1000m. Therefore, A’s speed is 1000/95= 10 10/19 m/sec. In this q


Profit and Loss – Dishonest Dealers and Faulty Weights Questions for CAT Exam

August 7th, 2020 by

Dishonest Dealers and faulty weights is an important topic in profit and loss generally asked in all competitive exams. In this topic, we come across such type of problems in which shopkeeper sells the items at cost price but still, he makes a profit on those items. This can be only possible if he gives less quantity to the customer then the indicated on the product. A dishonest merchant shows he is selling the product on cost price in the welfare of customer but in that he reduced its weight. For example, if shopkeeper sells a 1-liter packet of milk at its cost price but he gives only 80


Understanding Confusing Words – Part 3

August 5th, 2020 by

This is the last post in the series on confusing words. If you haven't read them already, check out Understanding Confusing Words – Part 1 and Understanding Confusing Words – Part 2. where we have discussed a list of important words that you should know if you want to save some time in the verbal section of CAT, IIFT, XAT or any other MBA entrance exam. In this post, we will first look at a few more words and then we will talk about how to use of the words you have learnt through these posts. Why is this important? Because skimming through blog posts will not help much. When you’re re


Understanding Confusing Words – Part 2

August 4th, 2020 by

In the Understanding Confusing Words – Part 1, we discussed confusing words. As discussed Learning New Words – Why, How and Strategies, these words are not directly related to CAT prep for the vocab section or for any MBA exam (so don't expect direct questions based on these words) but knowing the right words and the correct usage will make your job much easier while attempting questions. Let us extend the list with a few more words. Prescribe vs. Proscribe - These similar sounding words have very different meanings. Prescribe is the more common word, and it's often used at the docto


Understanding Confusing Words – Part 1

August 3rd, 2020 by

In the last post we looked at some ways to learn new words - reading with context, flashcards, word group lists and studying by comparing words. We had discussed about identifying words that are confused easily. In this post we will look at some examples involving these confusing words. Now, will a misunderstanding cost you marks in the exam? Not necessarily so, because like we discussed last time, no questions simply ask for meanings of words. However, when you’re reading a block of text and reach this word where you are not quite sure of the meaning, that is enough to cause a problem.


Concepts of HCF for CAT Exam with Solved Examples

August 2nd, 2020 by

Highest Common Factor (HCF) is the largest factor of two or more numbers. The same can be defined algebraically as “ HCF of two or more algebraical expressions is the expression of highest dimension which divides each of them without remainder. HCF is also called GCD (Greatest Common Divisor). HCF can be found either by Factorization method or Long Division Method. However, these two methods are not feasible when we have to find HCF of more than 3 numbers and the numbers are also large. In that case, we can find the differences between the numbers and they can find the HCF of differe


Preparation Strategy and Study Plan for CAT Repeaters

August 1st, 2020 by

The reasons behind retaking the CAT exam can be numerous. Many people take the exam because they didn’t get the desired CAT score, a few people performed well, however, did not get calls from the b-school they wanted, or some got calls but couldn’t clear GD/PI of the respective institutes. Here is a guide for all those people out there who want to leave no stone unturned for their repeat journey of CAT preparation: 1. Break down what went wrong last year Take a seat and thoroughly analyze where were you lacking last year. Ask yourself these questions Was it a sectional im