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SAT turned GMAT

by sanju09 » Thu May 07, 2009 6:30 am
A number is such that its units digit is greater than its tens digit. What is the number?

(1) It is a 3-digit multiple of 5 that is greater than 849.

(2) The sum of the hundreds digit and the tens digit is 12.


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by 2010gmat » Thu May 07, 2009 6:41 am
1. 3 digit multiple of 5 > 849
+ units digit > ten's digit

now unit's digit can either be 5 or 0, but since unit's digit > 10's --> unit's dig = 5

now number can be 905 oe 915 or 925 0r 935 or 945...1. is insuff

2. 100s + 10s = 12 -- 2. is insuff alone

1. + 2. --- > 100s + 10s = 12 ---> 9 + x = 12 ---> x= 3

no. = 935

ans = c
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