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# If a and b are the digits of the two-digit positive integer X, what is

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Math Expert
Joined: 02 Sep 2009
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If a and b are the digits of the two-digit positive integer X, what is  [#permalink]

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04 Apr 2016, 07:21
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35% (medium)

Question Stats:

65% (01:32) correct 35% (01:59) wrong based on 86 sessions

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If a and b are the digits of the two-digit positive integer X, what is the remainder when X is divided by 9?

(1) a + b = 11

(2) X + 7 is divisible by 9

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Re: If a and b are the digits of the two-digit positive integer X, what is  [#permalink]

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04 Apr 2016, 11:39
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If a and b are the digits of the two-digit positive integer X, what is the remainder when X is divided by 9?

(1) a + b = 11

(2) X + 7 is divisible by 9

a+b=11
Say 29,92,38,83,47,74,56,65...Every case has 2 as a remainder when divided by 9...

X+7 is divisible by 9 itself shows that it leaves a remainder...

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Re: If a and b are the digits of the two-digit positive integer X, what is  [#permalink]

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24 Feb 2019, 10:49
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Re: If a and b are the digits of the two-digit positive integer X, what is   [#permalink] 24 Feb 2019, 10:49
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