# Interpretation Techniques

Bear in mind that approach to a “Data Interpretation” problem is uniquely different from that of a mathematics ** or** even quantitative problem. Good observation coupled with speedier calculation helps in cracking a DI problem. One must remember that the examiner has on purpose given a difficult problem, which cannot be solved within the stipulated time, but as a escape route he has provided options. It is therefore imperative to read the problem along with the options. Broadly speaking the approach to a DI problem lies in understanding as to “What is given”. “What is asked” and the “What are the approximations and calculations required”.

v As a first step, take a look at the figures and see the notes appended. Are the figures in lakhs or crores? The superfluous information can be ignored after reading the complete text along with all the questions. Spend at least 10-15 seconds on the interpolation and understanding of graph only.

v Sometimes there is a combination of tables and graphs. Correlate the graphs provided and understand the relationship between the graphs, before actually attempting the question.

v Do not ignore the options. They provide vital clues in identifying the answer to majority of the problems.

v Intelligent guessing can reduce calculations and in turn saves time. Approximation techniques and quick calculations are discussed in the next chapter in detail.

# Points to Remember

v 1 Lakh = 1,00,000 = 10^{5}

1 Crore = 1,00,00,000 = 10^{7}

1 Million = 1,000,000 = 10^{6}

1 Billion = 1,000,000,000 = 10^{9}

Þ 1 Billion = 10 Crores = 1000 Million

1 Million = 10 Lakhs

v 1 Km = 1000 m.

1 m = 100 cms.

1 inch = 2.54 cms.

1 Foot = 12 inch = 30.48 cms.

1 Yard = 3 foot = 36 inch = 91.44 cms.

1 Mile = 1760 years = 1.6 kms.

v Spend 15 to 30 seconds in under standing and analyzing the graph.

v Go for minor details like (in 000’s); (in tons of); (million US $); Revenue = profit + cost

v When symbol * is given, always read the information next to the symbol

v Try to decipher the units, whenever the question is (in 000’s) __or__ (in Lakhs) the answer can be (in Lakhs) __or__ (in 000’s). Such an error can be detected with careful observation.

v Having understood, what is given, try to understand what is asked and what is required to be calculated.

v Look at the options and try to gives if any intelligent guesswork can be made.

Having seen the options, try to approximately calculate the answer.

In majority of the cases one of the options will match, if not go for actual calculations

v Always make a note for increase and decrease, this helps us out in ruling out certain options.

v Read the statements like “A is what percent of B” “A is how much percent more than B”