Write the formula for finding rate of discount after discount amount and marked price are given.

Discount % = (Discount/List Price) × 100

Step-by-step explanation:

To calculate the discount, you must have the list price (marked price) and the selling price of the product you are buying.

Example: If the list price of a book is $50, and $10 discount is offered on the book, then the discount percentage is calculated as follows.

Discount % = (Discount/List Price) × 100

List price = $50; discount = $10

Discount (%) = (10/50) × 100

= 100/5

= 20%

4/6 = 2/3

so it should take 3/3 hours per man. so 9 hours is the answer 3*3 =9

step-by-step explanation: