Question

The mean of 15 number is 63 . If each number is divided by 9, what will be the mean of the new number ?​

Answer 1

Answer:

given the mean of 15 number is = 27

let the number be x₁,x₂,x₃.............x₁₅

= x₁,x₂,x₃.................,x₁₅ / 15 = 27

= x₁,x₂,x₃.................,x₁₅ = 27 * 15 = 405 ...... eqn first

now the each number is multiplied by 4 then, new set of 15 number is , so new mean is

x₁*4 ,x₂*4 ,x₃*4 .................,x₁₅*4 / 15 = 4* { x₁,x₂,x₃.................,x₁₅} / 15 = 4*27 = 108 [ using eqn first ]

hence new mean is = 108

Step-by-step explanation:

do like this

pls make it brainlest answer