 
<translate> Na farko 10 benaye ne 10 * 12 = 120 feet. Akwai sauran 20 - 10 = 10 labarun. Kowannensu yana da 12 + 3 = 15 feet. Saboda haka wadannan labaran su ne 15 * 10 = 150 feet. Saboda haka jimlar tsawo ita ce 120 + 150 = 270 feet. Amsar ƙarshe: 270. <eng> The first 10 floors are 10 * 12 = 120 feet. There are a remaining 20 - 10 = 10 stories. They are each 12 + 3 = 15 feet. So those stories are 15 * 10 = 150 feet. So the total height is 120 + 150 = 270 feet. The final answer: 270. 