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# a, b, c, d, and e are five consecutive numbers in increasing

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Joined: 18 Apr 2015
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Kudos [?]: 1449 [0], given: 6611

a, b, c, d, and e are five consecutive numbers in increasing [#permalink]  14 Apr 2018, 02:27
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Question Stats:

85% (00:54) correct 14% (02:46) wrong based on 14 sessions
a, b, c, d, and e are five consecutive numbers in increasing order of size. Deleting one of the five numbers from the set decreased the sum of the remaining numbers in the set by 20%. Which one of the following numbers were deleted?

(A) a
(B) b
(C) c
(D) d
(E) e
[Reveal] Spoiler: OA

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Joined: 07 Jan 2018
Posts: 659
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Kudos [?]: 620 [1] , given: 88

Re: a, b, c, d, and e are five consecutive numbers in increasing [#permalink]  16 Apr 2018, 21:33
1
KUDOS
Take any set of 5 consecutive numbers eg: $$1,2,3,4,5$$
The sum of the numbers $$= 15$$
After deleting one number the sum is $$20%$$ less than original hence sum $$= 15*0.8 = 12$$
$$15-12 =3$$ Therefore $$3$$ has been deleted
In the set $$a,b,c,d,e$$ $$3$$ occupies the spot for $$c$$
Hence option C
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This is my response to the question and may be incorrect. Feel free to rectify any mistakes

Re: a, b, c, d, and e are five consecutive numbers in increasing   [#permalink] 16 Apr 2018, 21:33
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