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 10%, then what was the cost of the tax free items?	Choose one
A) A)19.7  B) B)20  C) C)21.3  D) D)21.7  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 = 10%   ∴ (25−30/100−x)10/100 = 30/100   ⇒ 10(25 −0.3 −x) = 30   ⇒ (25 − 0.3 − x) = 3   ⇒ x = 25 − 0.3 − 3   = 21.7   21.7
<result>D</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 10%, then what was the cost of the tax free items?