Question

When an article is sold at 10% discount, there so a profit is of Rs. 50. If the same article is sold at 20% discount. loss of Rs. 15. Select the formula for calculation of Profit in I case and calculation of lass in II case.​

Answer 1

Explanation:

let Marked Price be x, so cost =.9x-8. Now x-(.9x-8)=20 or .1x=20–8=12 or x=12/.1=120. so cost is 120–20=100 Rs.