Question

when a natural no. is multiplied by x, then cube of new no. is 64 times if cube of previous no. what will be the value of x?​

Answer 1

Answer:

let the natural number be N

when it multiplied by x we get a new number that is Nx

given that (cube of new number)=64(cube of previous number)

i.e (Nx)^3=64 (N)^3

or N^3x^3=64N^3

cancel N^3 from both sides

we get 3x^3=64

or x^3=64/3=21.3

or x=(21.34)^(1/3)

or x=2.77

i m not vry sure...you will check it

Answer 2

Answer: 4

Step-by-step explanation: let the natural no be n,

APQ,

(nx)3 = 64 * (n)3

x3 = 64

x = 4