Question

The number are in the ratio 2:3:5 the sum of their cubes is 54690 find the number

Answer 1

Total parts =2+3+5

= 10

Let the one getting 2 parts be a

" " " 3 parts be b

" " " 5 parts be c

a= (2×54690)÷10=10938

b=(3×54690)÷10=16407

c=(5×54690)÷10=27345

Answer 2

Hey friend your answer is
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The number are in the ratio 2:3:5
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Let the no. be 2x,3x,5x
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2x³+3x³+5x³=54690
8x³+27x³+125x³=54690
160x³=54690
x³=54690/160
x³=343
x=7

2x=2×7=14
3x=3×7=21
5x=5×7=35