उस वर्ग की पहचान करें जो तीन संकेंद्रित वृत्तों (concentric circles) वाले वेन आरेख का सबसे अच्छा प्रतिनिधित्व करता है, जहाँ सबसे छोटा वृत्त पूरी तरह से मध्य वृत्त के अंदर है, और मध्य वृत्त पूरी तरह से सबसे बड़े वृत्त के अंदर है।

In a certain Venn diagram, the circle represents illiterate people, the square represents married people, and the triangle represents unemployed people. If the region representing married people who are unemployed but not illiterate has a value of 4, how many married people are unemployed but not illiterate?

In a certain representation, a square represents people who like cricket, a circle represents people who like basketball, a rectangle represents people who like tennis, and a triangle represents people who like hockey. Which region represents people who like basketball, tennis, and hockey, but do NOT like cricket?