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# Set A consists of the first ten positive integers. Set B consists of

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Math Expert
Joined: 02 Sep 2009
Posts: 58368
Set A consists of the first ten positive integers. Set B consists of  [#permalink]

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29 Mar 2018, 21:10
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Difficulty:

15% (low)

Question Stats:

82% (01:35) correct 18% (02:29) wrong based on 51 sessions

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Set A consists of the first ten positive integers. Set B consists of the first ten positive even integers. And Set C is created by taking each of the terms in Set A and adding 8 to it. If Sets A, B, and C are all combined to form Set D, what is the mode of Set D?

A. 2
B. 8
C. 10
D. 18
E. 20

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Re: Set A consists of the first ten positive integers. Set B consists of  [#permalink]

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29 Mar 2018, 21:22
Set A = {1,2,3...10}
Set B = {2,4,6...20}
Set C= {9,10,11...18}
Set D= {1,2,2,3,4,4,5,6,6,7,8,8,9,10,10,10,11,12,12,13,14,14,15,16,16,17,18,18,20}

Mode of set D = 10, Answer C
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Re: Set A consists of the first ten positive integers. Set B consists of  [#permalink]

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29 Mar 2018, 21:23
Set A - First 10 positive numbers
Set B - First 10 positive even numbers
Set C - Add 8 to each of Set A

The numbers 2,4,6,8 and 10 will repeat in Set A and Set B.

When set C comes into picture, only 10 occurs in all the 3 sets.

Ans : C
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Re: Set A consists of the first ten positive integers. Set B consists of   [#permalink] 29 Mar 2018, 21:23
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