Question

A and b have between them 1200 a spends 12% of his money while b spends 20% of his money they are then left with a sum that constitutes 85% of the original sum.find what amout is left with
a.

Answer 1

the cost of production of a 50 kg bag of cement is rs. 90 and it sold of rs 120. the govt. imposes a tax of 10% on the cost of production. if the govt. changes its policy and levises the 10% tax on the selling price instead of cost price , by what percent does the profit decrease?( assume selling price is unchanged)