Question

One card is selected at
random from 50 cards numbered
1 to 50. Find the probability that
the number on card is (i) divided
by 5 (ii) prime (iii) ends in digits 2​

Answer 1

Answer:

Question:- One card is selected at random from 50 cards, numbered 1 to 50.

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To Find:- probability of different events.

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Required Answer:-

sample space:- 1,2,3,4......50.

n(S)=50

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Event A:- number is divisble by 5.

A=5,10,15,20,25,30,35,40,45,50

n(A)=10

P(A)=n(A)/n(S)

P(A)=10/50

P(A)=1/5

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Event B:- prime number

B=5

n(B)=1

P(B)=n(B)/n(S)

P(B)=1/50

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Event C:- number ends with digit 2

C=(-) or 0

n(c)=0

P(C)=n(C)/n(S)

P(C)=0/50

P(C)=0

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Hope it help you.