How do you average in maths?

How do you average in maths?

To calculate it: add up all the numbers, then divide by how many numbers there are. Example: what is the average of 2, 7 and 9? (Also called the Arithmetic Mean.)

What is discount formula?

The formula to calculate the discount rate is: Discount % = (Discount/List Price) × 100.

What is the formula of time and work?

Important Time and Work Formula Work Done = Time Taken × Rate of Work. Rate of Work = 1 / Time Taken. Time Taken = 1 / Rate of Work. If a piece of work is done in x number of days, then the work done in one day = 1/x.

What is the formula of profit %?

The formula to calculate the profit percentage is: Profit % = Profit/Cost Price × 100.

How discount is calculated?

How to calculate a discount

• Convert the percentage to a decimal. Represent the discount percentage in decimal form. ...
• Multiply the original price by the decimal. ...
• Subtract the discount from the original price. ...
• Round the original price. ...
• Find 10% of the rounded number. ...
• Determine "10s" ...
• Estimate the discount. ...
• Account for 5%

What is the formula for work?

To express this concept mathematically, the work W is equal to the force f times the distance d, or W = fd. If the force is being exerted at an angle θ to the displacement, the work done is W = fd cos θ.

What is loss formula?

Formula: Loss = C.P. – S.P. Remember: Loss or Profit is always computed on the cost price. Marked Price/List Price: price at which the selling price on an article is marked. Discount: price offered as a discount, concession or rebate on the marked price.

What is 10% out of 500?

50 Answer: 10% of 500 is 50.

How to calculate the weighted average in Excel?

Enter the formula you need to calculate the weighted average. 1 SUMPRODUCT. The SUMPRODUCT function multiplies the numbers in each row together and adds them to the product of the... 2 SUM. The SUM function adds the numbers in a single row or column. Because we want to find an average for the price of a... More ...

How to calculate the average percentage in a survey?

Average percentage formula. The following is the formula that can be used to calculate most percentage averages: [(Percentage 1 + percentage 2)/ (sample size 1 + sample size 2)] x 100 = average percentage. In this formula, percentage 1 represents the decimal value of the given percentage from sample size 1. In order to determine the value of ...

How do you find the average of a range in Excel?

In order to get the average of the three largest numbers in a range, we would nest the AVERAGE and LARGE functions as follows: When we type braces around the k argument, Excel identifies the first, second, and third largest numbers in the array, and the AVERAGE function finds their average.