# GMAT Question of the Day (Nov 29): Arithmetic and Sentence Correction

- Nov 29, 02:00 AM Comments [1]

Math (PS)

What is the last digit of $3^{3^3}$ ?

(A) 1
(B) 3
(C) 6
(D) 7
(E) 9

Question Discussion & Explanation
Correct Answer - D - (click and drag your mouse to see the answer)

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Verbal (SC)

Standard police procedure requires that an officer interview witnesses separately rather than together.

(A) Standard police procedure requires that an officer interview witnesses separately rather than together
(B) A requirement, according to standard police procedure, is that an officer interview witness separately rather than interviewing them together
(C) Standard police procedure requires an officer to interview witnesses separately rather than to interview them together
(D) It is required in standard police procedure that an officer interviews witnesses separately, not together
(E) Standard police procedure requires that an officer interviews witnesses separately rather than together

Question Discussion & Explanation
Correct Answer - A - (click and drag your mouse to see the answer)

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### [1] Comment to this Article

1. Veena Trika Shaw December 2, 2:47 AM

hi, can anyone suggest me some android app for quantitative aptitude practice.. i came to know about this one http://shoonya.mobi they claim they have unlimited questions and they show my accuracy and time taken… Has anyone used it yet?