Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Let n be the number obtained on rolling a fair die. If the probability that the system
has a unique solution is 
,
then the sum of 
and all possible values of 
is :
Text Solution
Verified by ExpertsThe correct answer is:
D
The coefficient matrix has determinant 
.
The system has a unique solution when 
, which requires 
and 
.
For a fair die, 
, so the unique solution occurs for 
.
The probability is 
, giving 
.
The sum of 
and all possible values of 
where unique solution exists is 
.
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