Daniel went to a shop and bought things worth Rs. 25, out of which 30 Paise went on sales tax on taxable purchases. If the tax rate was 5%, then what was the cost of the tax free items?	Choose the correct answer:
A) A)18.7	B) B)20	C) C)21.3	D) D)21.5	E) E)22
Total cost of the items he purchased = Rs.25   Given that out of this Rs.25, 30 Paise is given as tax   =&gt; Total tax incurred = 30 Paise = Rs.30/100   Let the cost of the tax free items = x   Given that tax rate = 5%   ∴ (25−30/100−x)5/100 = 30/100   ⇒ 5(25 −0.3 −x) = 30   ⇒ (25 − 0.3 − x) = 6   ⇒ x = 25 − 0.3 − 6   = 18.7   18.7
<result>A</result>
Daniel went to a shop and bought things worth Rs. 25, out of which 30 Paise went on sales tax on taxable purchases. If the tax rate was 5%, then what was the cost of the tax free items?