 
 <prompt> N'okpu okwu, e nwere marbles n'ime 4 n'ala. N'ime, e nwere 20 red marbles. E nwere ihe ọ bụla green marbles ka red. Yellow marbles na-eme 20% nke green marbles. Kedu ihe marbles bụ nke ọzọ ma ọ bụrụ na ọnụ ọgụgụ nke marbles n'ala n'ime bụ atọ ọnụ ọgụgụ nke green marbles? <response>: Nke a bụ 3 * 20 = 60 green marbles.
Nke a bụ 60 * 20/100 = 12 yellow marbles
N'ime ka 3 * 60 = 180 marbles.
N'ime ka 180 - 20 - 60 - 12 = 88 marbles nke ọzọ n'akụkọ.

Ọ bụghị 88. 