XAT 2013 Question 15
This is a detailed step-by-step solution for XAT 2013 Question 15. Understand the concept, common mistakes, and expert tips to solve similar questions in XAT exam.
XAT
The central idea of the passage is that one can estimate any physical quantity, even though the actual value is difficult or not possible to find.
Statement 1 is incorrect as estimation even when the correct value is known is not the central idea of the passage.
Statement 4 incorrect as Fermi's brilliance was not what the author is discussing.
Statement 3 does not contain the central idea of the passage, it is an example for minimal information can provide estimate values.
Hence only statement 2 is correct.