CAT 2021 Question Paper | CAT Verbal Ability Slot 3
Question :
If 3x + 2|y| + y = 7 and x + |x| + 3y = 1, then x + 2y is
Started 1 month ago by Shashank in
Option D
is the correct answer.
Explanatory Answer
3x + 2|y| + y = 7
x + |x| + 3y = 1
lets take x and y to be positive
3x+3y=7
2x+3y=1
x=6, but y is negative so this case is invalid
Lets take x is +ve and y is -ve
3x-y=7
2x+3y=1
à x=2 and y=-1
Case is valid
x+2y = 2 + 2(-1) = 0
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