A book was sold for Rs. 27.50 with as profit of 10%. If it were sold for Rs. 25.7, then what would have been the percentage of profit or loss?

The percentage of loss when an article is sold at Rs. 50 is the same as that of the profit when it is sold at Rs. 70. The above mentioned percentage of profit or loss on the article is

An article is sold at a profit 20% had it been sold for Rs 60 more, the profit would have been 30%. Find the CP

A radio is sold for Rs. 880 at a profit of 10%. What would have been the gain or loss percent, had it been sold for Rs. 780 ?

An article was sold at a loss of 15%. If it was sold for Rs.1,035 more, then there would have been a profit of 8%. Find the cost price of the article.