1. Problem 1: Calculate the total number of pupils present in both morning and afternoon sessions. Step 1: Identify the number of boys and girls in the morning session. - Boys in morning = 87 - Girls in morning = 95 Step 2: Calculate the numbers for the afternoon session. - Boys in afternoon = 87 - 2 = 85 (two boys fewer) - Girls in afternoon = 95 + 3 = 98 (three girls more) Step 3: Find the total number of pupils present in each session. - Total morning = 87 + 95 = 182 - Total afternoon = 85 + 98 = 183 Step 4: Calculate the total number of pupils present in both sessions. - Total pupils = 182 + 183 = 365 2. Problem 2: Calculate the duration of three TV shows: Cartoon Show, Sesame Street, and Spider Man. Step 1: Given durations: - Cartoon Show = 25 minutes Step 2: Calculate the duration of Sesame Street: - Sesame Street = Cartoon Show + 15 = 25 + 15 = 40 minutes Step 3: Calculate the duration of Spider Man: - Spider Man = Sesame Street - 8 = 40 - 8 = 32 minutes Step 4: Summary of durations: - Cartoon Show: 25 minutes - Sesame Street: 40 minutes - Spider Man: 32 minutes