GMAT Question of the Day (Feb 28): Arithmetic and Sentence Correction

Math (PS)

How many odd three-digit integers greater than 800 are there such that all their digits are different?

(A) 40
(B) 56
(C) 72
(D) 81
(E) 104

OA and Explanation

Verbal (SC)

A new test for AIDS has proved helpful in eliminating blood, contaminated with the virus, from the nation's blood supply.

(A) in eliminating blood, contaminated with the virus, from the nation's blood supply
(B) in eliminating blood from the nation's blood supply that is contaminated with the virus
(C) in eliminating from the nation's blood supply blood that is contaminated with the virus
(D) to eliminate blood that is contaminated with the virus from the nation's blood supply
(E) to eliminate blood from the nation's blood supply that is contaminated with the virus

OA and Explanation

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