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In the correctly calculated subtraction problem shown above

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In the correctly calculated subtraction problem shown above [#permalink] New post 10 Jun 2017, 02:13
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Question Stats:

70% (01:11) correct 30% (02:44) wrong based on 10 sessions


145.3
-AB.A
______

66.6

In the correctly calculated subtraction problem shown above, a and b represent digits from 0 to 9, inclusive.

Quantity A
Quantity B
15
A + B


A) Quantity A is greater.
B) Quantity B is greater.
C) The two quantities are equal.
D) The relationship cannot be determined from the information given.
[Reveal] Spoiler: OA

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Kudos [?]: 330 [0], given: 66

Re: In the correctly calculated subtraction problem shown above [#permalink] New post 04 Nov 2017, 06:22
The expression 145.3 - AB.A = 66.6 can be easily rewritten as 145.3 - 66.6 = AB.A, i.e. 78.7 = AB.A so that A = 7 and B = 8.

Then, A+B = 15 and quantities A and B are equal. Answer C
Re: In the correctly calculated subtraction problem shown above   [#permalink] 04 Nov 2017, 06:22
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In the correctly calculated subtraction problem shown above

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