Answer :
the marked price of towel is rs.50
sales tax is 5%
therefore 5% of 50=5/100*50
=2.5rs
therefore buying price wil be 50+2.5=52.5
sales tax is 5%
therefore 5% of 50=5/100*50
=2.5rs
therefore buying price wil be 50+2.5=52.5