 <translate> Buru ụzọ chọpụta ego ole Mary na-akwụ kwa izu maka ebe a na-atụfu ihe: $10 / ebe a na-atụfu ihe * 2 ebe a na-atụfu ihe = $20. Mgbe ahụ tinye nke a n'ọnụ ego a ga-eji tụgharịa ihe: $20 + $5 = $25. Mgbe ahụ, mụbaa ego a na-emefu n'otu izu site n'ọnụ ọgụgụ izu a na-emefu n'otu ọnwa iji chọpụta ego a na-emefu n'otu ọnwa: $25 / izu * izu 4 / ọnwa = $100 / ọnwa. Ugbu a, gbakọọ ego a na-akwụ Mary maka ndị agadi: 18% * $100 = $18. Ugbu a, wepụ ego ahụ e belatara ma gbakọta ya na ego ahụ a ga-akwụ gị iji mata ego ole ị na-emefu n'otu ọnwa: $100 - $18 + $20 = $102. Ya mere azịza ya bụ 102. <hau> Da farko gano nawa Mary ke biya a mako don kwandon shara: $ 10 / kwandon shara * 2 kwandon shara = $ 20. Sa'an nan kuma ƙara wannan zuwa farashin kwandon sake amfani: $ 20 + $ 5 = $ 25. Sa'an nan kuma ninka farashin mako ta yawan makonni a kowane wata don samun farashin kowane wata: $ 25 / mako * 4 makonni / watan = $ 100 / watan. Yanzu lissafa rangwame na Maryamu: 18% * $ 100 = $ 18. Yanzu sai ka cire kuɗin da aka rage kuma ka ƙara kuɗin don ka samu jimillar kuɗin kowane wata: $100 - $18 + $20 = $102. Amsar ita ce 102. 