Question

The income of three persons is in the ratio 3:4:5.The sum of their cubes is

27000000. Find their income.​

Answer 1

Answer:

your answer

Explanation:

Let the nos. be 3x, 4x, 5x

So, (3x)^3 + (4x)^3 + (5x)^3 = 27000

27x^3 + 64x^3 + 125x^3 = 27000

216x^3 = 27000

x^3 = 27000 / 216

x^3 = (30 / 6) ^3

=> x = 30 / 6

So, the nos. are :-

1) 3x = 3*30/6 = 15

2) 4x = 4*30/6 = 20

3) 5x = 5*30/6 = 50/3

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