Answer:
March 28
Step-by-step explanation:
We want to find Susan's birthday when Sam's birthday and some intervals between dates are given.
Sam's birthday
Referencing the attachment, we see that Sam's birthday on September 6th is the 249th day of the year.
Jim's birthday
Sam's birthday on the 249th day of the year is 186 days after Jim's birthday. This means Jim's birthday is day ...
249 -186 = 63
Susan's birthday
Susan's is 24 days after Jim's, so is on day number ...
63 +24 = 87
Day 87 is March 28.
Susan was born on March 28.
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Additional comment
All of these dates are in the same year after February 29, so it does not matter whether the year is a leap year or not.
Jim's birthday is March 4.
