4. Find the three numbers in AP whose sum is 24 and the sum of their cubes is 1728.
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0
Answer:
Let the 1x,2x&3x are the 3 numbers
∴ sum of their cubes =x
3
+(2x)
3
+(3x)
3
=98+84
=(36x)
3
x
3
=
36
98784
=2274
x=
2744
=14
∴3 numbers are 14,28,42
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