Rule of thumb' means-

A a rule based on science

B a bad rule

C a rule the must be obeyed

D a rule based on past experience rather than on theory

Solution

Correct Answer: Option D

'Rule of thumb' phrase-টির অর্থ- পুরোপুরি ঠিক নয় কিন্তু অভিজ্ঞতা এবং অনুশীলন এর উপর প্রতিষ্ঠিত পদ্ধতি বা বিধান। অর্থাৎ a rule based on past experience rather than on theory.

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