Question

7. Three numbers are in ratio 3:4:5. The sum of
their cubes is 7,29,000. Find the numbers.​

Answer 1

Answer:

since ratio is 3:4:5

therefore 3x:4x:5x

so sum of there cube is equal to 729000

so (3x)'3+(4x)'3+(5x)'3=729000

so 27x'3+64x'3+125x'3=729000

205x'3=729000

x'3=3375

x=3✓3375

x=15

therefore 3x=45

4x=60

5x=75

Explanation:

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