Question

Three numbers are in the ratio 2 : 3 : 5. If the sum of
their cubes is 1280, find the three numbers.

Answer 1

Answer:

let the numbers be 2x, 3x, 5,

ATQ

2x+3x+5x= 1280

10x = 1280

x= 1280/10

x= 128

2x= x×2= 128× 2= 256

3x= x×3= 128× 3= 384

5x= x×5= 128× 5= 640

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Answer 2

Answer:

4,6,10

Step-by-step explanation:

Assume the numbers to be 2x, 3x, 5x...

8  + 27  + 125  = 1280

160  = 1280

= 1280/160 = 8

X= 2

Numbers:

2X= 2X2= 4

3X= 6

5X= 10

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