 
<translate> Ajụjụ: E nwere 50 marbles na a igbe nke nwere a ngwakọta nke na-acha ọcha, red na-acha anụnụ anụnụ marbles. Na mbụ, e nwere bọl ọcha iri abụọ na bọl na-acha ọbara ọbara na nke na-acha anụnụ anụnụ. Jack na-ewepụ ọtụtụ marbles hà ka okpukpu abụọ nke ọdịiche dị n'etiti ọnụ ọgụgụ nke marbles ọcha na ọnụ ọgụgụ nke marbles na-acha anụnụ anụnụ. Mgbọ bọọlụ ole ka fọdụrụ n'ime igbe ahụ? Buru ụzọ chee echiche nke ọma, kpebizie ihe ị ga-eme: <eng> Question: There are 50 marbles in a box which has a mixture of white, red and blue marbles. There were originally 20 white marbles and an equal number of red and blue marbles. Jack removes a number of marbles equal to double the difference between the number of white marbles and the number of blue marbles. How many marbles are left in the box? Think carefully first, then make a decision: 