A retailer sold a laptop at a loss of 5%.If he had sold it at rs6000 more, he would have gained 10%.Find the cost price of the laptop.

Me because some of question i don’t understand

Yoku is putting on sunscreen. he uses 2\text{ ml}2 ml to cover 50\text{ cm}^250 cm 2 of his skin. he wants to know how many milliliters of sunscreen (c)(c) he needs to cover 325\text{ cm}^2325 cm 2 of his skin. how many milliliters of sunscreen does yoku need to cover 325 \text{ cm}^2325 cm 2 of his skin?

Regular price 75$ discount 25%sale price?