A capsule of medicine is in the shape of a sphere of diameter 2.8 mm. How much medicine is needed to fill this capsule (correct to one decimal place) ? $\left(\pi =\frac{22}{7}\right)$
Answer & explanation
Correct answer: option 1
A capsule of medicine is in the shape of a sphere of diameter 2.8 mm.
Volume of spherical medicine = 4Πr3/3 = 4Π(2.8)3/3 = 4Π*(21.952)/3 = 11.4986
The correct answer is option (1) : $11.5\, mm^3$