Jerry went to a shop and bought things worth Rs. 45, out of which 30 % went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?
Choose the correct option
A) 19	B) 19.7	C) 21.3	D) 29.5	E) 39.7
Total cost of the items he purchased = Rs.45   Given that out of this Rs.45, 30 % is given as tax   =&gt; Total tax incurred = 30 % = 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>
Jerry went to a shop and bought things worth Rs. 45, out of which 30 % went on sales tax on taxable purchases. If the tax rate was 6%, then what was the cost of the tax free items?