Question

Three numbers are in the ratio 3:4:6 and the sum of their cubes is 1728
find the numbers.​

Answer 1

3 nos ratio = 3:4:6

nos. = 3x, 4x, 6x

cubes:

(3x) 3, (4x) 3,(6x) 3

27 x^3,64x^3, 216x^3

Sum=307x^3=1728

x^3=1728/307=0.039

x =v1728/307=1.8

Nos: 3x,4x, 6x

5.4, 7.2, 10:8 are nos