<prompt> Rangarira ndima iri pasi apa uye wopindura mubvunzo unotevera mumutauro mumwe chetewo: Passage: Muguta, vanhu vakapararira ne21.3 vari pasi pemakore 18, 8.1 kubva pamakore 18 kusvika pamakore 24, 30.2 kubva pamakore 25 kusvika pamakore 44, 22.7 kubva pamakore 45 kusvika pamakore 64, uye 17.8 vaive nemakore 65 kana kupfuura. Avhareji yezera raiva makore 38. Kune vakadzi 100 voga voga, paiva nevarume 86.6. Kune vakadzi 100 voga voga vane makore 18 zvichikwira, paiva nevarume 83.4.  <response>: 30.2 