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# If [m]\square[/m] represents a digit in the 7-digit number

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Study Buddy Forum Moderator
Joined: 04 Sep 2016
Posts: 1269
Location: India
WE: Engineering (Other)
If [m]\square[/m] represents a digit in the 7-digit number  [#permalink]

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23 Nov 2018, 08:31
00:00

Difficulty:

25% (medium)

Question Stats:

80% (01:26) correct 20% (01:28) wrong based on 49 sessions

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Project DS Butler: Day 18: Data Sufficiency (DS36)

If $$\square$$ represents a digit in the 7-digit number 3,62 $$\square$$ ,215,
what is the value of $$\square$$?

(1) The sum of the 7 digits is equal to 4 times an integer.

(2) The missing digit is different from any of the other
digits in the number.

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RC Moderator
Joined: 24 Aug 2016
Posts: 576
Concentration: Entrepreneurship, Operations
GMAT 1: 630 Q48 V28
GMAT 2: 540 Q49 V16
Re: If [m]\square[/m] represents a digit in the 7-digit number  [#permalink]

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23 Nov 2018, 09:11
1

Project DS Butler: Day 18: Data Sufficiency (DS36)

If $$\square$$ represents a digit in the 7-digit number 3,62 $$\square$$ ,215,
what is the value of $$\square$$?

(1) The sum of the 7 digits is equal to 4 times an integer.

(2) The missing digit is different from any of the other
digits in the number.

1) Not Sufficient : current sum is 19 . So the number can assume 1,5, or 9 to satisfy the statement :The sum of the 7 digits is equal to 4 times an integer.
2) Not Sufficient : Missing digits are :0,4,7,8, and 9
1+2) Sufficient : There is a common element in the 2 aforementioned sets. i.e., 9
Hence Ans C.
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Joined: 02 Oct 2018
Posts: 59
Re: If [m]\square[/m] represents a digit in the 7-digit number  [#permalink]

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28 Nov 2018, 10:10

Project DS Butler: Day 18: Data Sufficiency (DS36)

If $$\square$$ represents a digit in the 7-digit number 3,62 $$\square$$ ,215,
what is the value of $$\square$$?

(1) The sum of the 7 digits is equal to 4 times an integer.

(2) The missing digit is different from any of the other
digits in the number.

Can you pls explain how the answer is (C) and not (E)?
Re: If [m]\square[/m] represents a digit in the 7-digit number &nbs [#permalink] 28 Nov 2018, 10:10
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