 
<translate> Yana bukatar gwangwani guda na frosting a kowane layer cake kuma yana bukatar yin 3 layer cakes don haka wannan 1 * 3 = gwangwani guda 3 na frosting. Akwai cupcakes 6 dozin, 12 guda cakes da 18 pans na brownies domin a total na 6 + 12 + 18 = 36 umarni. Kowane ɗayan umarni 36 yana buƙatar 1 / 2 gwangwani na frosting don haka suna buƙatar 36 *.5 = gwangwani 18. Yana buƙatar gwangwani 3 na frosting don wainar da aka shimfiɗa da gwangwani 18 don sauran abubuwan don jimlar gwangwani 3 + 18 = 21 na frosting. Amsar ita ce 21. <eng> He needs 1 can of frosting per layer cake and he needs to make 3 layer cakes so that's 1 * 3 = 3 cans of frosting. There are 6 dozen cupcakes,12 single cakes and 18 pans of brownies for a total of 6 + 12 + 18 = 36 orders. Each of the 36 orders needs 1 / 2 can of frosting so they need 36 * .5 = 18 cans of frosting. He needs 3 cans of frosting for the layer cakes and 18 cans for the remaining items for a total of 3 + 18 = 21 cans of frosting. So, the answer is 21. 