Bal b/f 27 Tempos+8 Tempos=35 Tempos Bal c/f
省到累積：Bal b/f TW$22,339 +早餐TW$80 +午餐TW$80 +晚餐TW$80 +當天用膳共少於240台幣可得TW$80 +不約人用膳TW$80 +當天成
1º. A計劃工作找錢 2º. B計劃禁食省錢
省到水電：Bal b/f TW$4,015+TW$365=TW$4,380 Bal c/f