CAT 2021 Question Paper | CAT Verbal Ability Slot 2
Question :

For all real numbers x the condition |3x - 20| + |3x - 40| = 20 necessarily holds if

Started 5 days ago by Shashank in

Option B is the correct answer.

Explanatory Answer

|3x-20| + |3x-40| = 20 
If we put x=6 
2+22   does not satisfy 
If we put x=14 
22+2 does not satisfy 
à Option A, C, D can be eliminated 
Hence, 7<x<12 

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