Question

Riya and Kajal are friends. The probability that both will have the same birthday in a non-leap year is?​

Answer 1

Answer:

1 in 730

Step-by-step explanation:

because total number of days is 360 and both riya and kajal need to have their birthday oh the same day so 365×2

Answer 2

According to the question we have

Riya may have any one of 365 days of the year as her birthday. Similarly, Kajal may have any one of 365days as her birthday.

A total number of ways in which Riya and Kajal may have their birthday are:

365 x 365

Then Riya and Kajal may have the same birthday on any one of 365 days.

Therefore the probability of Riya and Kajal may have same birthday are:

$=\frac{365}{365 \times 365}$

$=\frac{1}{365}$

Hence the answer is 1/365