1. Ipapo munhu uya akandiuyisa kunzvimbo tsvene yokunze akayera mbiru, upamhi hwembiru hwaisvika makubhiti matanhatua rumwe norumwe.
2. Mukova wacho wakanga una makubhiti gumi paupamhi, uye madziro aionekera kurutivi rumwe norumwe rwawo akanga ana makubhiti mashanu paupamhi. Iye akayerawo nzvimbo tsvene yokunze; yakanga yakareba makubhiti makumi mana uye makubhiti makumi maviri paupamhi.