Arun remembers that his brother’s wedding is

Solution

To find the correct date, we must look for the dates that satisfy both conditions simultaneously. According to Arun: The wedding falls on one of the days between the 15th and 19th, which are: 16th, 17th, 18th. According to his mother: The wedding falls on one of the days between the 16th and 20th, which are: 17th, 18th, 19th. Comparing both sets: Arun: {16, 17, 18} Mother: {17, 18, 19} The common dates in both lists are the 17th and the 18th. Since we cannot narrow it down to a single specific day, the date is either the 17th or the 18th. Hence, option d.