Answer this probability question?

[vaniinstitute]

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
A. 1/2
B. 2/5
C. 8/15
D. 9/20

[smruti rekha]

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
A. 1/2
B. 2/5
C. 8/15
D. 9/20

[kazisbi]

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
A. 1/2
B. 2/5
C. 8/15
D. 9/20

Answer is D. 9/20
Not conform. please reply true answer.

Thank you !

[kapil24bhargava]

Ans.D

[umeshpaliwal]

Tickets numbered 1 to 20 are mixed up and then a ticket is drawn at random. What is the probability that the ticket drawn has a number which is a multiple of 3 or 5?
A. 1/2
B. 2/5
C. 8/15
D. 9/20

Answer is D. 9/20
Not conform. please reply true answer.

Thank you !

the answer will be 2/5.

[balabky9]

Ans should be 9/20

Probability ticket is multiple of 3 occurs when ticket num is either 3,6,9,12,15 or 18 ie 6 options. So 6/20

similarly for 5 we have 5,10,15,20 ie 4 options.

which is 4/20

Add both for probability of 3 or 5 but subtract 15 ka case as we have counted it twice in 3 as well as 5 ka case.

So answer is 9/20

Or just count multiples of 3 and 5 in 1-20 and divide them by twenty. Dont count 15 twice.

Hope it helps.

[vaniinstitute]

Thanks for answering

[lone umer]

Answer is A. (10/20=1/2)

[lone umer]

Ans is D (9/20)