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2015-03-05T14:31:49+05:30

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First find the volume of the cubes which is 27 64 and 125
add the volumes it is 216
a3=216
a=cube root of 216=6 cm
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2015-03-05T14:32:13+05:30

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Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Vol. of three cubes = Vol. of one big cube.
3X3X3+4X4X4+5X5X5=x³
27+64+125=x³
216=x³
x=∛216=6cm
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