Question

The three number are to one another 2 ratio 4 ratio 7 the sum of their cube is 3320 find the number

Answer 1

Answer:

let the no be X

so (2x)^3+(4x)^3+(7x)^3=3320

(8+64+343)x^3=3320

415x^3=3320

x^3=8

X=2

nos be 4,8,14