The ratio of volume of 2 sphere is 8:27 if r and R radii of sphere respectively find (R-r)/r

VishAl KumAr's image
VishAl KumAr
Jan. 31, 2018, 8:31 p.m.

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poonam sharma's image
poonam sharma
Jan. 31, 2018, 9:13 p.m.
4/3πr^3 : 4/3πR^3   =    8 : 27
r^3 : R^3     =    8 : 27
(R-r)/r   =  (27-8)/8  = 19/8.  = 2.375
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