Answer:
The largest number is:
19
Explanation:
Let the three consecutive numbers be:
x , x+1 and x+2 respectively
Now, it is given that:
The sum of three consecutive numbers is 41 less than five times the largest number.
i.e.

i.e.

Hence, the smallest number is: 17
The middle number is: 17+1=18
and the largest number is: 17+2=19