 
 <translate> Ten students raised a total of $20 x 10 = $200. There are 30 - 10 = 20 students who raised $30 each. Twenty students raised a total of $30 x 20 = $600. Therefore, the students raised a total of $200 + $600 = $800. So, the answer is 800. <ibo> Ụmụ akwụkwọ iri chịkọtara ngụkọta nke $20 x 10 = $200. E nwere ụmụakwụkwọ 30 - 10 = 20 ndị wetara $30 onye ọbụla. Ụmụ akwụkwọ iri abụọ wetara ngụkọta nke $30 x 20 = $600. N'ihi ya, ụmụ akwụkwọ ahụ nwetara ngụkọta nke $200 + $600 = $800. Ya mere, azịza ya bụ 800. 