Three numbers are in the 2:3:4. The sum of their cubes is 33957. Find the Numbers.
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Answered by
4
Answer:
Let the numbers be 2x, 3x and 4x
sum of cubes = 33957
⇒(2x)³ + (3x)³ + (4x)³ = 33957
⇒8x³ + 27x³ + 64x³ = 33957
⇒99x³ = 33957
⇒x³ = 33957/99 = 343
⇒x = ∛343 = 7
Numbers are:
2x = 2×7 = 14
3x = 3×7 = 21
4x = 4×7 = 28
hopes it helps!!!
Answered by
1
Answer:
Let the we take are 2x 3x&4x
sum of their cubes is 33957
(2x)^3+(3x)^3+(4x)^3=33957
8x^3+27x^3+64^3=33957
99x^3=33957
x^3=33957/99
x=3√343
x=7
So, 2x=2*7=14
3x=3*7=21
4x=4*7=28
I Hope it helps you...
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