A sphere and a cone have the same radii. If the volume of the sphere is triple of the volume of the cone, find the ratio of the cone's height and radius.

Faten's age is twice that of Raihana, Raihana's age is twice that of Jahllo and Jahllo's age is twice that of Maboutou. If the average of the ages of Faten, Raihana, Jahllo and Maboutou is 37.5 years, then what is the present age of Jahllo?