The sum of cubes of three numbers which are in the ratio 1 : 2 : 3 is 7776 find the numbers
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Answered by
15
hiii!!!
here's ur answer...
ATQ, the sum of cubes of three numbers which are in ration 1 : 2 : 3 is 7776.
let the numbers be 1x , 2x and 3x
therefore (x)³ + (2x)³ + (3x)³ = 7776
==> x³ + 8x³ + 27x³ = 7776
==> 36x³ = 7776
==> x³ = 7776/36
==> x³ = 216
==> x = ³√216
==> x = 6
hence, the numbers are :-
x = 6
2x = 2 × 6 = 12
3x = 3 × 6 = 18
hope this helps..!!
here's ur answer...
ATQ, the sum of cubes of three numbers which are in ration 1 : 2 : 3 is 7776.
let the numbers be 1x , 2x and 3x
therefore (x)³ + (2x)³ + (3x)³ = 7776
==> x³ + 8x³ + 27x³ = 7776
==> 36x³ = 7776
==> x³ = 7776/36
==> x³ = 216
==> x = ³√216
==> x = 6
hence, the numbers are :-
x = 6
2x = 2 × 6 = 12
3x = 3 × 6 = 18
hope this helps..!!
parwez4444:
firs no wil 216 second 432 and 3rd 648 hoga rhgt
:-) nah
yes
thanks
rosa we r correct
hmm
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7
hyyyy mate.....
thanks for the question....
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thanks for the question....
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hope it helps u......
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