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# A and B Are Friends. Ignoring the Leap Year, Find the Probability that Both Friends Will Have: Different Birthdays? - ICSE Class 10 - Mathematics

ConceptSimple Problems on Single Events

#### Question

A and B are friends. Ignoring the leap year, find the probability that both friends will have:

different birthdays?

#### Solution

Out of the two friends, A's birthday can be any day of the year. Now, B's birthday can also be any day of 365  days in the year.

We assume that these 365 outcomes are qually likely.

If A's birthday from B's the number of favourable outcomes for his birthday is 365-1=364

So, p(A's birthday is different from B,s birthday)=364/365

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Solution A and B Are Friends. Ignoring the Leap Year, Find the Probability that Both Friends Will Have: Different Birthdays? Concept: Simple Problems on Single Events.
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