 
<translate> Ọ na-efu 250 *.4 = $100 karịa uwe ochie ya. Ya mere, ọ na-efu 250 + 100 = $350. Ọ hapụrụ ego nkwụnye ego 350 *.1 = $ 35. Ya mere, ọ ga-akwụ 350 - 35 = $315. N'ihi ya, azịza ya bụ 315. <eng> It cost 250 * .4 = $100 more than his old costume. So it cost 250 + 100 = $350. He left a 350 * .1 = $35 deposit. So he had to pay 350 - 35 = $315.
Thus, the answer is 315. 