Question

Three no. are in the ratio 2:3:4. The sum of their cubes is 792 .Find the no.

Answer 1

Answer:

Step-by-step explanation:

let the numbers be 2x,3x,4x

8x³+27x³+64³=792

x³=792/99

x³=8

x=2

the numbers are 4,6,8

Answer 2

Let the first number be 2x

Let the second number be 3x

Let the third number be 4x

According to question:-

(2x)³ + (3x)³ + (4x)³ = 792

8x³ + 27x³ + 64x³ = 792

99x³ = 792

x³ = 792/99

x³ = 8

x = ✓8

x = 2

therefore, first number is 2*2 = 4

second number is 3*2 = 6

third number is 4*2 = 8

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