Question

The table shows the cost of sunscreen of two brands with the without sales tax. Which brand has a greater sales tax rate? Give the sales tax rate each brand.

	Cost (in Rs.)	Cost $$+$$ tax
$$1\ .X\ (100\ gm)$$	$$70$$	$$75$$
$$2.\ Y\ (100\ gm)$$	$$62$$	$$65$$

Answer 1

As per question,
Brand $$X$$ sunscreen cost $$=Rs.\ 70$$
And with sales tax$$=Rs.\ 75$$
Now, sales tax paid $$=Rs.\ 75-Rs.\ 70=Rs.\ 5$$
Again,
Brand $$Y$$ sunscreen cost $$=Rs.\ 62$$
And with sales tax$$=Rs.\ 65$$
Now, sales tax paid $$=Rs.\ 65-Rs.\ 62=Rs.\ 3$$
So, great sales tax rate $$=$$Brand $$X$$
Now, sales tax for brand $$X=\dfrac{5}{70} \times 100=7.14 \%$$
Now, sales tax for brand $$Y=\dfrac{3}{62} \times 100=4.84 \%$$