Mean proportional of 9 and 25 a.15b.20c.5d.10

The mean proportional (also known as the geometric mean) between two numbers, a and b, is the square root of the product of the two numbers.

Here, we are asked to find the mean proportional between 9 and 25.

Step 1: Multiply the two numbers together. 9 * 25 = 225

Step 2: Find the square root of the product. The square root of 225 is 15.

So, the mean proportional of 9 and 25 is 15. Therefore, the answer is a.15.

The mean proportional (also known as the geometric mean) between two numbers, a and b, is the square root of the product of the two numbers.

Here, we are asked to find the mean proportional between 9 and 25.

Step 1: Multiply the two numbers together. 9 * 25 = 225

Step 2: Find the square root of the product. The square root of 225 is 15.

So, the mean proportional of 9 and 25 is 15. Therefore, the answer is a.15.