[" 15.By selling "90" ball pens for "R" sprice."],[" sold for "R" s "96" so as to have a profit of "20%" ? "],[" 16."A" man sell "c" an "]

/By selling 90ball pens for 160, a person loses 20%. How many ball pens shou 96 so as to have a profit of 20%?/r

By selling 90 ball pens for Rs 160 a person loses 20%. How many ball pens should be sold for Rs 96 so as to have a profit of 20%?

By selling 90 ball pens for Rs 160 a person loses 20%. How many ball pens should be sold for Rs 96 so as to have a profit of 20%?

A person sells an article at 10% below its cost price. Had he sold it for Rs. 332 more, he would have made a profit of 20%. What is the original selling price (in Rs.) of the article ?

On selling 70 articles for Rs 160 a person incurred loss of 20%. How many articles he should sell for Rs 96 to earn profit of 20%.