Answer:
Option a and b both are correct.
Explanation:
We have been given the information that is: n is added to 15 less than 3 times itself.
The result is 101.
So, the number is 15 less than 3 times to itself means: 3n-15
And n is added to it that means:
n+(3n-15)
And its result is 101 so,
n+(3n-15)=101
After simplification of above expression gives:
4n-15=101.
Therefore, Option a and b both are correct.