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Question

If [x3x−yzx+z3y−w]=[3247], then

A
x=3,y=7,z=1,w=14
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B
x=3,y=5,x=1,w=4
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C
x=3,y=6,z=2,w=7
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D
None of these
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Solution

The correct option is A x=3,y=7,z=1,w=14
Given that [x3xyzx+z3yw]=[3247]
comparing both sides:
x=3
3xy=2
y=92=7
zx+z=4
z=43+1=1
3yw=7
w=217=14
Ans: A

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