Question

6. Three numbers are in the ratio 2 : 5:7 and the sum of their cubes is 2338.588.
Find the numbers.​

Answer 1

Answer:

numbers are in ratio 2:5:7

let the numbers be 2x , 5x and 7x

(2x)³+(5x)³+(7x)³ = 2338.588

8x³+125x³+343x³= 2338.588

476x³=2338.588

x³=2338.588/476

x=³√4.931

x=1.702

2x = 3.404

5x = 8.51

7x = 11.914