Sarada and Hamida are friends. What is the probability that both will have (1) different birthdays? (ii) the same birthday? (ignoring a leap year).

In family there are 5 children. Find the probability that (i) all of them will have different birthdays (ii) two of them will have the same birthday and (iii) at least two of them will have the same birthday (1 year = 365 days).

In a family there are 4 children. Find the probability that (i) all of them will have different birthdays, (ii) two of them will have the same birthday (1 year = 365 days).

Find the probability that a leap year will have 53 Friday or 53 Saturdays.

The probability that a leap year will have 53 Tuesday or Saturday is -

Two customers Shyam and Ekta are visiting a particular shop in the same week (Tuesday to Saturday). Each is equally likely to visit the shop on any day as on another day. What is the probability that both will visit the shop on (i) the same day? (ii) consecutive days? (ii) different days?

There are 52 cards with each of two boys. Each draws a card at random. What is the probability that(i) both the cards will be king of diamonds (ii) both be diamonds (iii) both will be kings?

Assume that each born child is equally likely to be a boy or a girl. If a family has two children, what is the conditional probability that both are girls given that  (i) the youngest is a girl, (ii) at least one is a girl?

Find the probability that the birthday of 7 persons will fall on 7 different days of the week assuming equal probability for each of these days.

What is the probability that a non leap year selected at random will contain 53 sundays?