How to Solve DI Questions, A Sure Short Approach
1. Spend half a minute look at the table or graph and the directions. Note the years to which the data refers to and the units. Sometimes the figures may be given in thousands while the answer may be millions, resulting in mistakes.
2. Make sure you understand what the table says and what it does not. For instance, if it says there are 80,000 people in the age group of 16-30 years, it does not give information about the exact number of people at particular age. It simply says that there are so many people in the age group of 15 years, both 16 and 30 being included.
3. The level of approximation that can be done is assessed from the choices. If the answers are wide, time should not be wasted in working out exact figures. If the choice 'none of the above' exists, a close approximation may be required.
4. Read the question carefully. It will give an indication as to which row and column should be seen. A careful reading of the question will reveal exactly what is to be done, and the units in which the answer is required.
5. There may be one or two very large questions requiring calculations. Attempt these at the last.
6. Revise bar charts, statistics and graphs before attempting DI questions.
Remember that the DI section is a scoring one and also time saving.