GMAT Question of the Day (May 14): Probability and Sentence Correction

By - May 14, 02:00 AM Comments [1]

Math (PS)

The probability that a visitor at the mall buys a pack of candy is 30%. If three visitors come to the mall today, what is the probability that exactly two will buy a pack of candy?

(A) 0.343
(B) 0.147
(C) 0.189
(D) 0.063
(E) 0.027

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

GMAT Daily Deals
  • Over 4 M students achieved educational & career goals thanks to Kaplan’s unparalleled test prep courses. Save $400. CHECK OUT THE SAVINGS!
  • GMAT Pill: Learn to think through questions and take on any GMAT question with confidence. Learn more!
  • Want to get into your dream school but not spend thousands of dollars? Try myEssayReview & save here. Get an exclusive GMAT Club discount!
  • Check out Stacy Blackman Consulting Essay Guides. From Harvard to Wharton, there's a guide for you. Get a FREE consultation!

Verbal (SC)

Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture to 1950.

(A) Between 1990 and 2000 the global economy grew more than it did during the 10,000 years from the beginning of agriculture
(B) Between 1990 and 2000 the growth of the global economy was more than that during 10,000 years, from when agriculture began
(C) The growth of the global economy between 1990 and 2000 exceeds that which had been for 10,000 years from the beginning of agriculture
(D) The growth of the global economy between 1990 and 2000 exceeds what it has been for 10,000 years, from when agriculture began
(E) The growth of the global economy between 1990 and 2000 exceeded what it did for the 10,000 years from the beginning of agriculture

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

Like these questions? Get the GMAT Club question collection: online at GMAT Club OR on your iPhone/iPad

Browse all GMAT Questions of the Day

Subscribe to GMAT Question of the Day: E-mail | RSS

Leave a Reply

[1] Comment to this Article

  1. Naren June 2, 12:53 PM

    In this scenario , order does not matter.

    So in this case:

    If any of the two men buy candy then the third one should not buy any candy – AND condition here , hence

    Probability is (.3) *( .3)*(1-.3)*3
    where the last 3 is total no of possible combinations ,not in any particular order.

    This equals
    .3*.3*.7*3=.189

    Reply