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Is the hundredths digit of the decimal d greater than 5?

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Is the hundredths digit of the decimal d greater than 5? [#permalink] New post 18 Feb 2007, 20:21
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A
B
C
D
E

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1.Is the hundredths digit of the decimal d greater than 5?
(1)The tenths digit of 10d is 7
(2)The thousandths digit of d/10 is 7

2.The number x and y are not integers. The value of x is closest to which integer?
(1)4 is the integer that is closest to x+y.
(2)1 is the integer that is closest to x-y.

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 [#permalink] New post 19 Feb 2007, 00:10
1. D
2. E

1)

Statement one says that d=0.x7....because 10*d=0.7x.... sufficient
Statement two says that d=0.x7.....because d/10=0.xx7.... sufficient

2)

This one is picking numbers:
Statement one:
3.2+0.7 or 2.1+2.3....not sufficient x could be closer to 3 or 2

Statement two:
2.1-0.9 or 3.2-2.1....not sufficient x could be closer to 3 or 2

1)+2) 2.5+1.8 or 2.4+1.8 ...... x could be closer to 3 or to 2 Insufficient
  [#permalink] 19 Feb 2007, 00:10
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Is the hundredths digit of the decimal d greater than 5?

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