By the rule of thumb
A. By the use of force
B. By the use of trickery
C. By cheating and deception
D. By practical experience which is rather rough
Answer: Option D
Solution(By Examveda Team)
By the rule of thumb: an easily learned and easily applied procedure or standard, based on practical experience rather than theory.This Question Belongs to Competitive English >> Idioms And Phrases
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