Two solid spheres have volumes 250cmo and 128cmo respectively. Find the ratio of their radii.

Home ยป Past Questions ยป Mathematics ยป Waec ยป 1994 ยป Two solid spheres have volumes 250cmo and 128cmo respectively. Find the ratio of their radii.
Mathematics WAEC 1994

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 checkmark

The correct answer is: E

Explanation

4/3ฯ€R3/4/3ฯ€r3
=
250/180
= (R/r)3 = 5:4
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