
The trick with these figure-based questions is to treat every shape as a yes/no filter and go region by region. We need a region that says yes to "urban" (triangle), yes to "hard working" (square), yes to "honest" (rectangle), and no to "educated" (circle).
Going through all four choices this way leaves region 4 as the single region matching "uneducated urban hard-working and honest".
Let's summarize:
So the region indicating uneducated, urban, hard-working and honest people is region 4.
In the following figure, the smaller triangle represents teachers; the big triangle represents politicians; circle represents graduates and rectangle represents members of Parliament. Different regions are being represented by letters of English alphabet. On the basis of the above diagram, answer the following questions: 
Consider the Diagram. 500 Candidates appeared in an Examination comprising test in English, Hindi and Maths. The Diagram gives number of students who failed in different tests. What is the percentage of student who failed at least two subjects?
