# #Day 51: BBA & HM Free Study Plan: Data Interpretation Tricks

By Gaurav Mohanty|Updated : June 8th, 2021

#Day 51: BBA & HM Free Study Plan: Data Interpretation Tricks

Data Interpretation Tricks is a very important for the Quant section with good accuracy. You may also find the application of this topic in certain Data Interpretation questions as well.

## Visual Estimation

Now let's come to our topic. How to use visual estimation technique to solve Data Interpretation questions. Let's take a visual example :-

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Example - Red bars state wheat production state and Green bars states rice production.

Question - In which year percentage increase Wheat production was highest ?

As you can see there is increase of 5 tonnes in production both wheat and rice production every year.

10% of 50 = 5

10% of 70 = 7

## Finding averages

Many times in Data Interpretation, questions are asked to find average of 5-6 big numbers. As all these numbers are from a same graph, there is high probability that these number will be close to each other. Take a look to following visual example :-

In the above example you can find average of above number in just 5 seconds :-

7800 ( 14 +29 + 108 + 22 + 120/5 ) = 7800 + 58.6 = 7858.6

I always try to find answers by approximation, in my mind I calculated answer 7860. Try it yourself.

Solve the fractions quickly

Learn the value of fractions in percentages. Please read Time and work chapter in my previous post in which I explained via a table.

## Faster calculations

Only thing that you require to score well in data interpretation questions is fast calculation. You can find multiplication tricks from my previous post.

Let's take an example :- How much 468 of 21428 ?

Let me make this simple for you.

1% of 21428 = 214
2% of 21428 = 428
0.1% of 21428 = 21

For me answer should be around 2.2%

There are many techniques which makes calculations easy. No teacher is going to teach techniques in the class. You need to learn them with practice.

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