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A number is randomly chosen from the first 100 positive inte
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13 Feb 2020, 19:32
13 Feb 2020, 19:32
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A number is randomly chosen from the first 100 positive integers. What is the probability that it is a multiple of 3?
(A) 32/100
(B) 33/100
(C) 1/3
(D) 34/100
(E) 2/3
(A) 32/100
(B) 33/100
(C) 1/3
(D) 34/100
(E) 2/3
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: A number is randomly chosen from the first 100 positive inte
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14 Feb 2020, 07:54
14 Feb 2020, 07:54
1
Asif123 wrote:
A number is randomly chosen from the first 100 positive integers. What is the probability that it is a multiple of 3?
(A) 32/100
(B) 33/100
(C) 1/3
(D) 34/100
(E) 2/3
(A) 32/100
(B) 33/100
(C) 1/3
(D) 34/100
(E) 2/3
The multiples of 3 are as follows: 3, 6, 9, 12, .....96, 99
Notice that:
3 = 3(1)
6 = 3(2)
9 = 3(3)
12 = 3(4)
.
.
.
96 = 3(32)
99 = 3(33)
So, we can see that there are 33 multiples of 3 between 1 and 100.
So, P(chosen number is multiple of 3) = 33/100
Answer: B
Cheers,
Brent
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Joined: 13 Feb 2020
Posts: 3
Given Kudos: 0
Location: India
Saae: Online
Re: A number is randomly chosen from the first 100 positive inte
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15 Feb 2020, 01:32
15 Feb 2020, 01:32
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Regards,
Saae online
For Ielts Coaching Visit :- Saaeonline[dot]com
Contact : 991O843689
Regards,
Saae online
For Ielts Coaching Visit :- Saaeonline[dot]com
Contact : 991O843689
