 
 <prompt> N'ụlọ Professor Plum nkebioloji, ndị ọkpara 40 bụ ha. N'ime ndị ọkpara a, 80% ha nwere nkịta. N'ime ndị ọ nwere nkịta, 25% ha nwere nkịta n'akụkọ. Kọtara ndị ọkpara ndị na-ewere nkịta na-akụkọ? <response>: ```Ntụgharị na ihe ndị ọzọ na-eme, 40 na-achọrọ ya na .8 maka 40 * 0.8 = 32 ndị na-eme n'akụkọ.
N'ime ndị na-eme n'akụkọ, 32, na-achọ ya na .25 maka iji were ndị na-eme n'akụkọ na n'akụkọ, 32 * 0.25 = 8 ndị na-eme n'akụkọ na n'akụkọ.
Ọ bụghị 8.

Nkọwa bụ 8.``` 