Consecutive numbers differ by one. So, if
is the first, the three numbers are

The sum of the first and third integer is

(1/5)x + 8
This will find 20% of the wholesale cost and add the $8 markup, where 'x' is the wholesale cost
of
is 
Solution:
Given
of what number is
.
Let us first convert the mixed fraction into improper fraction.


Now, let us take the unknown number be x.


Do the cross multiplication.



Now, again change the improper fraction into mixed fraction.

Hence
of
is
.
You can use times the value by 1.05 to find the answer directly