When solving pie charts in Data Interpretation remember the following things.

a) Look for all the information and understand the relationships of the information provided with the pie chart as much as possible. Understanding the information provided will help you solve the pie chart very easily.

b) The percentages (or ratios) given are not equal to the actual number. The actual number for each entity should be derived by multiplying with the total units present (if percentage is given). This is a 'silly mistake' committed by many students and it should be avoided.

c) Try approximation when applicable. In questions like these which are based on fractions and ratios, it is easy to reject incorrect answers very fast and this will help you in improving your speed. Grasp the relative sizes of each entity in the pie chart and this will help you easily reject a few answers. Using approximation, try to get the correct answer fast.

Hope this helps,
Maruti

The markup price of the article is 130%*78.350 = Rs. 101.855
The discount given is 20% = 20%*101.855 = Rs. 20.371
Hence, selling price is Rs. 81.484
So, profit is Rs 3.134
So, profit percentage is 4%

Note that in questions like this, the actual cost price is irrelevant. Because, profit percentage is asked, we can ignore the cost price and assume it to be 100 to ease the calculations.
So, mark up price will be Rs. 130
Discount is 20% of 130 = Rs. 26
Sales price is therefore 130-26=Rs. 104 and hence the profit percentage is 4%

In such problems where the marking and discount is for the same article, then we can ignore the cost also. Let the cost price be Rs.100. marked up 30% so marked price Rs.130. After 20% discount - 130 * 80/100 = Rs.104. Profit is 4%

Answer: c

In these kind of questions, the trick is start from 1 coin and take it forward. More often that not, there will be a pattern available. So, based on the number of coins, we can tell for sure which of the two players will win. Let me explain with the procedure.

If there is only one coin, the player who picks first (F) loses. So, the winner is the player who picks second (S).
If there are two coins, F can pick one coin. So, after F picks one coin, there is one coin left and S has to pick now. The situation is similar to the one above where the player who picks first loses. (in this case it is S who loses)
Similarly, if there are three coins, F can pick two coins and force S to lose.
Similarly, if there are four coins, F can pick three coins and force S to lose.
However, if there are five coins, irrespective of how many F picks, the ball is in S's court and he can force F to lose. Do you see that?

Expanding it further, whenever the number of coins is of the form 4k+1, the player who plays first loses. Every other time, the player who plays first wins. So, in the above options, the correct answer is c=25

Hello Maruti Sir, one doubt. In this question, the option of picking 2 coins could not be exercised. Then will the answer be same as well? Also can you please make a video on this? I have bought your course. It would be helpful for us.

But we can further maximise the profit by the following consideration. As we know from the question that: for every item E we buy, we need to buy 2 items D and 1item of B, which makes the total cost as Rs 215 and the total items bought as 4 in this particular purchase . Now, if we buy 4 of item E along with the aforementioned items , we will spend Rs 860 and will get 16 items in return.Now, for the full expenditure of Rs 1000, if we further buy 2 items of C for Rs 140, all the money would be spent and we will get the maximum profit of 18000 points. So, why cant we solve this question by this method? If anybody can help then please do!!!

To maximize the points earned, we have to maximize the number of items bought and minimize the number of points lost.
We can maximize the number of items bought by buying the item of the least cost, i.e., C, which is Rs 70.
If we buy 14 items of C, we are left with Rs 20, which will give a loss of 30000 points. Instead, if we buy 13 items of C and 1 item of B, then we spent all Rs 1000 and bought the highest number of items possible. So, we have to buy 14 items.

Hi Jeet,
There is no one easy way to solve these kind of problems. Only thing you can use to solve these questions is logic. What I would recommend is to solve as many different types of such questions as possible. When it comes to games and tournaments, tabulating the data helps a lot. So a general approach would be as follows:
1) Write down the information in a table format
2) If there is missing or incomplete data, make different versions of the table. Usually, all alternate versions except the correct one will prove to be infeasible as we try to fit in the remaining data
3) If the game is a knockout, draw a tree structure with converging branches

Hope this helps. There are a couple of good sources to prepare for these types of questions. Find them below:
https://cracku.in/cat/verbal-and-lr/logical-reasoning/games-and-tournaments
https://cracku.in/cat/verbal-and-lr/logical-reasoning/games-tournaments

First try to understand the given data (Type of tournament, number of matches possible, elimination rules if any, ) Tabulating the data helps you. Read the blog on how to solve Games and Tournaments for CAT. It will help you solve these type of questions

Important Points to note:
1. Try to find Main Point of the paragraph. As the sentences when constructed to make a paragraph presents an idea. Try to find that idea and see what role a particular sentence will play to depict the whole picture. Then arrange them accordingly to make paragraph coherent.

2. Try to see verbal connectives and logical connectives as they give hints regarding constructing the paragraph logically.
3. Try to see analogies as they should proceed with real life examples.

Internet is for nerds => Internet is for all nerds. Shyam is a nerd. So, internet is for Shyam is a valid conclusion.
Similarly, Capital punishment is for killers => Capital punishment is for all killers. Ravan is a killer. So, Capital punishment is for Ravan is a valid conclusion.
In 2, 'people' is mentioned in the conclusion but not in any of the statements. So, 2 is wrong.
In 4, the conclusion need not necessarily true.
So, 1 and 3 is the correct answer.

Hi Esakiraj,

Implementing the following strategy can help you increase your accuracy in Reading Comprehension:

1. Identify the theme of every paragraph while reading the RC for the first time.

2. Identify the specific questions. These are questions that pertain to a specific paragraph in the essay. These questions can be answered with greater accuracy.

3. For the 'generic questions', try to eliminate the least likely options. As a general strategy, choose the RC whose topic is familiar to you.

Try to answer at least three of the four questions in the RC. You can practise RC questions at the following links:

https://cracku.in/cat/quotient/dailytest-day86

https://cracku.in/cat/quotient/dailytest-day72

f(1) = a+b+c+d = 0
f(-1) = -a + b -c +d = 0
Adding, we get, b+d = 0
f(0) = d = 2 => b = -2

The speed of the train in m/s is 108*5/18 = 30 m/s
As it took the train 12 seconds to cross the platform, the total distance covered is 12*30 = 360 m/s
The length of the train is 280 m, hence the length of the platform is 100 m

If a man crosses the platform in 10 seconds, his speed is 100/10 = 10 m/s

8m/s