Rahul went to a shop and bought things worth Rs. 24, 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? Choose the correct answer:
A) 18.7
B) 20
C) 22
D) 21.4
E) 21.5
Total cost of the items he purchased = Rs.24   Given that out of this Rs.24, 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%   ∴ (24−30/100−x)6/100 = 30/100   ⇒ 6(24 −0.3 −x) = 30   ⇒ (24 − 0.3 − x) = 5   ⇒ x = 24 − 0.3 − 5 = 18.7   18.7
<result>A</result>
Rahul went to a shop and bought things worth Rs. 24, 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?