The purpose of guesstimates is not to find the exact answer to a question. When an interviewer asks for a guess, they are looking for logical thinking, problem-solving techniques, and analytical abilities like computation, speed, awareness, etc. Your problem-solving approach and logical skills are determined by the level of detail and depth you dig into an issue. All of these abilities are required for all sorts of professions, regardless of sector. The financial, marketing, retail, and banking businesses ask the most estimation inquiries. Overall, estimate questions need guesswork and practice to identify a wide variety of abilities.