Joya paid a sum of money for purchasing 20 pens, which she recovered in full when she sold 15 of them. What was her percentage of profit or loss per pen?
33% profit Joya sold 15 pens for the price she paid for 20 of them, so she has a profit margin of 20/15 = 1.33
Let total cost price of buying 20 pens is:20x15=300Rs. cp of one pen for joya=15 rs selling price of one pen for joya:20rs total profit per pen=((20-15)x100)/15=33.3333 percent is your answer
Profit=20-15 =5 Pen Profit in 5/20*100=25%
let cost prize of one pen =1 Rs then cost prize of 20 pens=20Rs 15 pens selling prize=20 pens cost prize=20 Rs profit=20-15=5Rs %profit=(5/20)*100 =25