[more weight, more sheets]

Use the formula and calculate the discount

Discount = Marked Price - Selling Price

The G.S.T is calculated for Rs.3,550 and then added with the amount to get the amount spent.

Let the marked price be 100.

Decrease percentage = \\(\\frac{Decreased value-original value}{original value}\\times 100\\)

Use the formula and calculate the discount

The 10% of 4,200 is found and the value is added with the cost of the toy.