Find the loss percentage if Banrap incurred a loss of RS. 310 when he sold cosmetic for RS. 1550. (In book answer is given as 25%.)

selling price = 1550

since the loss is 310, cost price = 1860

percentage loss based on cost price = 310/1860 = 16.7%
percentage loss based on selling price = 310/1550 = 20%

with neither of the two interpretations, the rate cannot be 25%

cost him 1860

310 * 100 / 1860 = 16.7 %

That means book answer is wrong. Even I got same as 16%.

To find the loss percentage, we need to calculate the loss as a percentage of the cost price of the item.

We know that Banrap incurred a loss of RS. 310 when selling the cosmetic for RS. 1550.

To calculate the cost price, we need to subtract the loss from the selling price.
Cost Price = Selling Price - Loss
Cost Price = RS. 1550 - RS. 310
Cost Price = RS. 1240

Now, to find the loss percentage, we use the formula:

Loss Percentage = (Loss / Cost Price) * 100

Substituting the values:
Loss Percentage = (RS. 310 / RS. 1240) * 100
Loss Percentage = 0.25 * 100
Loss Percentage = 25%

Therefore, the loss percentage is 25% of the cost price, as given in the book's answer.

Put C.P = 1240 ( it come from 1550 - 310) and it will be 25%.