Given, Brand X sunscreen cost = Rs.70
With sales tax it is Rs.75
Also, Brand Y sunscreen cost = Rs.62
With sales tax it is Rs.65
⇒ Sales Tax paid for brand X = 75-70 = Rs.5
⇒ Sales Tax paid for brand Y = 65-62 = Rs.3
Hence, brand X has greater sales tax rate.
Now, SalesTax =
⇒ Sales tax for brand X = 5/70 x 100
= 500/70
= 50/7
= 71.4%
⇒ Sales tax for brand Y = 3/62 x 100
= 300/62
= 4.838
= 4.84%