Question

three numbers are in ratio 3 : 4: 5. the sum of their cubes is 7,29,000.find the numbers.​

Answer 1

Answer:

45, 60, 75

Step-by-step explanation:

$(3x^3) +(4x^3)+(5x^3) = 729000$

$27x^3 + 64x^3+125x^3 = 720000$

$216x^3 = 729000$

$\sqrt[3]{216x^3} = \sqrt[3]{729000}$

$6x = 90$

$x = 15$

Numbers are

$3x = 45\\4x = 60\\5x = 75$