 
<translate> Kowane mako biyu, Grace za ta samu 300 * 2 = dala 600. Zai ɗauki Grace 1800 / 600 = 3 2 - makonni tazara don samun 1800 daloli. Zai ɗauki Grace 3 * 2 = makonni 6 gaba ɗaya. Amsar ƙarshe: 6. <eng> Every two weeks, Grace will get 300 * 2 = 600 dollars. It will take Grace 1800 / 600 = 3 2 - week intervals to get 1800 dollars. It will take Grace 3 * 2 = 6 weeks in total. The final answer: 6. 