Rajeswari went to the stationers and bought things worth Rs. 100, out of which 50 paise went on sales tax on taxable purchases. If the tax rate was 10%. then what was the cost of the tax free items?
Pick one:
A) Rs. 90.50  B) Rs. 89.50  C) Rs. 94.00  D) Rs. 99.50  E) Rs. 94.50
Solution   Let the amount of taxable purchases be Rs.x.   Then, 10% of x	= 50/100   x ‹=› (50/100×100/10)   = 5   Cost of tax free items	= Rs.[100 - (5 + 0.50)]   = Rs. 94.50   Answer Rs. 94.50
<result>E</result>
Rajeswari went to the stationers and bought things worth Rs. 100, out of which 50 paise went on sales tax on taxable purchases. If the tax rate was 10%. then what was the cost of the tax free items?