Subject: mathqa
Question: daniel went to a shop and bought things worth rs . 50 , out of which 90 paise went on sales tax on taxable purchases . if the tax rate was 15 % , then what was the cost of the tax free items ?
Option: 
A: e ) 22
B: a ) 19.7
C: c ) 43.1
D: d ) 21.5
Answer: C