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Tickets Numbered 1 to 20 Are Mixed up and Then a Ticket is Drawn at Random. What is the Probability that the Ticket Drawn Bears a Number Which is a Multiple of 3? - Mathematics

Sum

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn bears a number which is a multiple of 3?

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Solution

Tickets are marked from 1 to 20 are mixed up. One ticket is picked at random.

TO FIND: Probability that the ticket bears a multiple of 3

Total number of cards is 20

Cards marked multiple of 3 number are 3,6,9,12,15,18

Total number of cards marked multiple of 3 are 6

`"We know that PROBABILITY" =" Number of favourablr event"/"Total number of event"` 

`"Hence probability of getting a multiple of 3 on the ticket "=6/20=3/10`

`"Hence probability of getting a multiple of 3 on the ticket "3/10` 

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APPEARS IN

RD Sharma Class 10 Maths
Chapter 16 Probability
Q 10 | Page 35
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