Question

What is the output of print 0.1 + 0.2 == 0.3?

(a) True

(b) False

(c) Machine dependent

(d) Error

The question was asked by my school teacher while I was bunking the class.

I want to ask this question from Numeric Types in portion Variable Names, Operators, Data Types & Numeric Types of Python

Answer 1

The correct answer is (b) False

Best explanation: Neither of 0.1, 0.2 and 0.3 can be represented accurately in binary. The round off errors from 0.1 and 0.2 accumulate and hence there is a difference of 5.5511e-17 between (0.1 + 0.2) and 0.3.