Rahim went to a shop and bought things worth Rs. 35, out of which 50 Paise went on sales tax on taxable purchases. If the tax rate was 5%, then what was the cost of the tax free items?	Select:
A) 18.5 B) 21.5 C) 24.5 D) 23.5 E) 22.5
Total cost of the items he purchased = Rs.35   Given that out of this Rs.35, 50 Paise is given as tax   =&gt; Total tax incurred = 50 Paise = Rs.50/100   Let the cost of the tax free items = x   Given that tax rate = 5%   ∴ (35−50/100−x)5/100 = 50/100   ⇒ 5(35 −0.5−x) = 50   ⇒ (35 − 0.5 − x) = 10   ⇒ x = 35 − 0.5 − 10= 24.5   24.5)
<result>C</result>
Rahim went to a shop and bought things worth Rs. 35, out of which 50 Paise went on sales tax on taxable purchases. If the tax rate was 5%, then what was the cost of the tax free items?