ShreyKapil08
ScottTargetTestPrep
(640 - 600)/660 x 100 = 40/660 x 100 = 2/33 x 100 = 200/33 ≈ 6
Answer: B
That should be 640 in the denominator, right ? not 660.
Also, I see people using the formula:(P%*L%)/100
(25*25)/100
which works fine here and gives the correct answer for this question.
Can you please confirm if this is a standard formula which can be used in any question having a similar set up.
Thank you!
Response:660 was a typo, it should indeed be 640. Thanks for pointing it out.
For the formula (P%*L%)/100, it will work as long as the sale prices are equal. For a situation where this formula is not applicable, suppose that the dealer sold a piece of furniture for $300 and made 25% profit, but sold another piece of furniture for $750 and made a 25% loss. Then, the cost of the $300 piece is 300/1.25 = $240, and the cost of the $750 item is 750/0.75 = $1,000. Since the dealer spent 240 + 1000 = $1,240 and made only 300 + 750 = $1,050, his loss is 1,240 - 1,050 = $190. So, his loss is 190/1,240 ≈ 0.153, which corresponds to roughly 15.3%. As you can see, although he is making a 25% profit and a 25% loss, his overall loss is not 6.25%.