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### Discussion :: Percentage

1. Gauri went to the stationers and bought things worth Rs. 25, 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?

2.  A. Rs. 15 B. Rs. 15.70 C. Rs. 19.70 D. Rs. 20

Explanation :

Let the amount taxable purchases be Rs. x.

Then 6% of x = $$\frac { 30 } { 100 }$$

x =  [ $$\frac { 30 } { 100 }$$ x $$\frac { 100 } { 6 }$$ ] = 5

Cost of tax free items = Rs. [25 - (5 + 0.30)] = Rs. 19.70

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