Question 11
Emma’s village map labels each road with its travel time in minutes.
Labels: Nhà của Emma = Emma’s home; Chợ = market; Tiệm bánh mì = bakery; Hiệu thuốc = pharmacy; Quán kem = ice-cream shop; Nhà thờ = church; Công viên = park; Trường học = school. Emma must buy vegetables at the market, medicine at the pharmacy and a cake at the bakery. She starts and ends at home and may visit the three shops in any order. Each purchase takes one minute. What is the shortest total time, from leaving home until returning?
Labels: Nhà của Emma = Emma’s home; Chợ = market; Tiệm bánh mì = bakery; Hiệu thuốc = pharmacy; Quán kem = ice-cream shop; Nhà thờ = church; Công viên = park; Trường học = school. Emma must buy vegetables at the market, medicine at the pharmacy and a cake at the bakery. She starts and ends at home and may visit the three shops in any order. Each purchase takes one minute. What is the shortest total time, from leaving home until returning?