What is the GM for the numbers 8, 24 and 40? (i) 10 (ii) 14 (iv) None of these

Question

To find GM which formula should be used and how it works

 

Answer 1

The Geometric Mean is a special type of average where we multiply the numbers together and then take a square root (for two numbers), cube root (for three numbers) etc.

 

Here

 

GM = cube root of (8 * 24 * 40)

     = cube root of( 7680)

 

    ≈ 19.73