Rahul went to a shop and bought things worth Rs. 30, out of which 40 Paise went on sales tax on taxable purchases. If the tax rate was 8%, then what was the cost of the tax free items?	Choices:
A) 17.6
B) 24.6
C) 21.6
D) 18.6
E) 20.6
Total cost of the items he purchased = Rs.30   Given that out of this Rs.30, 40 Paise is given as tax   =&gt; Total tax incurred = 40 Paise = Rs.40/100   Let the cost of the tax free items = x   Given that tax rate = 8%   ∴ (30−40/100−x)8/100 = 40/100   ⇒ 8(30 −0.4−x) = 40   ⇒ (30− 0.4 − x) = 5   ⇒ x = 30 − 0.4 − 5 = 24.6.   24.6)
<result>B</result>
Rahul went to a shop and bought things worth Rs. 30, out of which 40 Paise went on sales tax on taxable purchases. If the tax rate was 8%, then what was the cost of the tax free items?