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Kaplan Question - Rounding

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Kaplan Question - Rounding

by hwiya320 » Sat Dec 06, 2008 1:41 pm
If the digit n is the thousandths digit in the decimal d = 0.75n9, what is the value of d when rounded to the nearest percentage point?

(1) When d is rounded to the nearest thousandth, its value is 0.755.

(2) 0 < n < 5

Correct answer is D
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Source: — Data Sufficiency |
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by cramya » Sat Dec 06, 2008 2:08 pm
Determine the rounding digit and look to the right side of it.

If that digit is 4,3, 2 or 1 drop all digits to the right of it.

If that digit is 5, 6, 7, 8 or 9 add one to the rounding digit and drop all digits to the right of it.


Stmt I

.75n9 becomes .755 therefore n must have been 4 (inclusive)

Nearest percentage point being 75


SUFF

Stmt II

0<N<4 again makes n=1,2,3,4 and the nearest percentage point to 75

SUFF

D)

Hope I dint miss any concepts here!
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