Question

Three number are in the ratio 1:2:3 the sum of their cube is 7776 find the numbers

Answer 1

Answer:

let the numbers be x, 2x, 3x

there cubes will be x^3, 8x^3, 27x^3

According to question,

x^3+8x^3+27x^3= 7776

36x^3= 7776

x^3= 7776/36= 216

√216= 6

therefore, x= 6

2x= 2×6=12

3x= 3×6=18

Answer 2

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