Question

Mohan correctly remembers that his father's birthday is before twentieth January but after
sixteenth January, whereas his sister correctly remembers that their father's birthday is after
eighteenth January but before twenty third January. On which date in January is definitely their
father's hirthday?​

Answer 1

Step-by-step explanation:

verify that (a+b)+c=a+(b+c) by taking a=7/5 , b=3/25 and c=5/7

Answer 2

Answer:

19 January

Step-by-step explanation:

As per Mohan's knowledge their father's birthday is between 16th-20th January.

As per his sister's knowledge their father's birthday is between 18th-23th January.

Comparing both the statements only 18th January fulfills both the conditions

∴ Their father's birthday is on 19th January

P.S. My birthday is on 23rd January