1

Problem

Find the Mean proportional between 125 and 5.

2

Step

Given mean Proportion

125,5

3

Formula

Mean Proportional Formula \$\sqrt(a times b)\$.

4

Step

First, multiply a & b

\$\sqrt(125 times 5) = \sqrt(225)\$

5

Step

The square root of the resulting term to get the mean proportional

\$sqrt(225)\$ = 25

Choices

6

Choice-A

It is correct because it represents the mean proportional between 125 and 5

Correct 25

7

Choice-B

Incorrect. This is not the square root of the product of 125 and 5

Wrong 24

8

Choice-C

Incorrect. This is not the square root of the product of 125 and 5

Wrong 26

9

Choice-D

Incorrect. This is not the square root of the product of 125 and 5

Wrong 28

10

Answer

Option

A

11

Sumup

Please summarize choices