Question

sudhir remembers his mother birtday is after 15 but before 20th april while his sister kalpana rememebers that her mothers birthday is before 22nd but after 18th of april. so when is their mother birthday?

Answer 1

Thanks for the question!

Sudhir remembers his mother birthday is after 15 but before 20th april. So, the probable dates are 16,17,18,19.
His sister Kalpana remembers that her mothers birthday is before 22nd but after 18th of april. So, the probable dates are 19,20,21.

In both above statements, the date 19th is common. So, their mother's birthday is on the 19th of April certainly.

Hope it is helpful to you and solves your query too!!!!

Answer 2

Solution :-

As Sudhir remembers about his mother's birthday that it is after 15th April but before 20th April. Therefore, the possible dates according to Sudhir will be 16th April, 17th April, 18th April and 19th April.

His sister Kalpana remembers that her mother's birthday is after 18th April but before 22nd April. Therefore, the possible dates according to Kalpana will be 19th April, 20th April and 21st April.

According to both Sudhir and Kalpana, only one date is common and that is 19th April.

Hence, their mother's birthday is on 19th April.

Answer.