 <translate> 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: <yor> Ibeere: Awọn marbles 50 wa ninu apoti kan ti o ni idapọ awọn marbles funfun, pupa ati bulu. Ní ìpilẹ̀ṣẹ̀, ogún [20] ọ̀pá funfun ni wọ́n ní, iye ọ̀pá pupa àti ọ̀pá búlúù náà ò sì fi bẹ́ẹ̀ pọ̀. Jack yọ iye àwọn bọ́ọ̀lù tó bá dọ́gba pẹ̀lú ìdàgbàsókè tó wà láàárín iye àwọn bọ́ọ̀lù funfun àti iye àwọn bọ́ọ̀lù aláwọ̀ búlúù. Mánigbàtà mélòó ló kù nínú àpótí náà? Kọ́kọ́ ronú dáadáa, kó o wá ṣèpinnu: 