Given, Cost of T-shirt = RS.1200
Also, cost of Jeans = Rs 1000.
And cost of Skirts = Rs 1350
Here, 2 skirts = 1350 + 1350 = 2700
We need to find out cost of items with sales tax
⇒ Total cost = 1200 + 1000 + 2700
= Rs. 4900
⇒ Sikha have to pay sales tax = 7%
Now, we know that the Total Sales Tax = Cost x Sales Tax
⇒ Total Sales Tax = (4900 x 7)/100
= 343
⇒ Now, The cost price with the sales tax Total Cost = Cost + Total Sales Tax.
⇒ Total cost = 4900 + 343
= Rs. 5243
So, the total cost to be paid to sikha is Rs. 5243