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WAEC - Mathematics (1994 - No. 33)

Two solid spheres have volumes 250cmo and 128cmo respectively. Find the ratio of their radii.
125:64
25:16
2:1
4:3
5:4

설명

4/3πR3/4/3πr3
=
250/180
= (R/r)3 = 5:4

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