List price of a pair of shoes is Rs. 540. If Amit paid Rs. 45 as sales tax for it, find the rate of sales tax.
Mohan paid Rs 20 as sales tax on a pair of shoes worth Rs 250. Find rate of sales tax.
The list price of a pair of shoes is Rs. 450. If Amit paid Rs. 45 as dales tax for it, find the rate of sales tax.