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How many multiples of 11 are there between 100 and 1,000, inclusive? (
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12 Jan 2023, 10:11
12 Jan 2023, 10:11
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Question Stats:
66% (00:53) correct
33% (01:33) wrong based on 12 sessions
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How many multiples of 11 are there between 100 and 1,000, inclusive?
(A) 80
(B) 81
(C) 82
(D) 900/11
(E) 901
(A) 80
(B) 81
(C) 82
(D) 900/11
(E) 901
GRE Prep Club Team Member
Joined: 20 Feb 2017
Posts: 2506
Given Kudos: 1053
GPA: 3.39
Re: How many multiples of 11 are there between 100 and 1,000, inclusive? (
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21 Jan 2023, 10:50
21 Jan 2023, 10:50
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Re: How many multiples of 11 are there between 100 and 1,000, inclusive? (
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22 Jan 2023, 06:05
22 Jan 2023, 06:05
2
No of multiples of 11 in a range is given by the given formula
a = Least no divisible by 11
b = Greatest no divisible by 11
No of multiples in a given range = (b-a)/11 + 1
= (990 - 110)/11 + 1
= 80 + 1
= 81, hence B
a = Least no divisible by 11
b = Greatest no divisible by 11
No of multiples in a given range = (b-a)/11 + 1
= (990 - 110)/11 + 1
= 80 + 1
= 81, hence B
