Rahul went to a shop and bought things worth Rs. 45, out of which 30 Paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?	Choices.
A) A)19.7	B) B)19.9	C) C)20.9	D) D)21.9	E) E)39.7
Total cost of the items he purchased = Rs.45   Given that out of this Rs.45, 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 = 6%   ∴ (45−30/100−x)6/100 = 30/100   ⇒ 6(45 −0.3 −x) = 30   ⇒ (45 − 0.3 − x) = 5   ⇒ x = 45 − 0.3 − 5 = 39.7   39.7)
<result>E</result>
Rahul went to a shop and bought things worth Rs. 45, out of which 30 Paise went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?