Maths Olympiad Prep

Library / /59 of 1394

Geometry Difficulty 4.6 AIME Find the answer United States

Problem:

Patrick and Anderson are having a snowball fight. Patrick throws a snowball at Anderson which is shaped like a sphere with a radius of 1010 centimeters. Anderson catches the snowball and uses the snow from the snowball to construct snowballs with radii of 44 centimeters. Given that the total volume of the snowballs that Anderson constructs cannot exceed the volume of the snowball that Patrick threw, how many snowballs can Anderson construct?

A number or a short expression. Fractions can be typed as 3/2, and spacing doesn't matter.

Solution

Solution:

(104)3=1258=15. \left\lfloor\left(\frac{10}{4}\right)^3\right\rfloor = \left\lfloor\frac{125}{8}\right\rfloor = 15.

Want a route through all this instead of an archive? The track puts 2,000 problems in a working order, from AMC 10 level to the IMO shortlist.

Source: MathNet, licensed CC-BY-4.0. Statement reproduced verbatim; metadata (topic, difficulty) added by this project.