Question

Question 63

The buying price of 5 kg of flour with the rate Rs 20 per kg, when 5% sales tax is added on the purchase, is Rs 21.

Answer 1

True
Total flour bought = 5 kg
Rate of one kg flour = Rs 20
Cost of 5 kg flour with 5% sales tax $=5\times 20+\frac{5}{100}\times (5\times 20)$
$=100+\frac{5}{100}\times 100=100+5=Rs.105$
Per kg flour rate after 5% sales tax $=\frac{105}{5}=Rs.21$