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gmat prep question

This topic has 2 member replies
yvonne12 Master | Next Rank: 500 Posts Default Avatar
Joined
07 Feb 2007
Posted:
144 messages

gmat prep question

Post Sun Mar 04, 2007 12:17 pm
Elapsed Time: 00:00
  • Lap #[LAPCOUNT] ([LAPTIME])
    in a certain deck of cards, each card hs a positive integer written on it. In a multiplication game a child draws a card and multiplies the integer on the card by the next large integer. if each possible product is between 15 and 200 then the least and greatest integers on the cards could be
    between

    1. 3 and 15
    2. 3 and 20
    3. 4 and 13
    4. 4 and 14
    5. 5 and 14

    ans. 3 please explain

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    jayhawk2001 Community Manager
    Joined
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    Posted:
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    Post Sun Mar 04, 2007 5:56 pm
    This can be solved with a bit of trial and error or by scanning the answer
    choices. Start with number 3

    3*4 < 15
    4*5 = 20 which is > 15. So 4 is the least number.

    Similarly on the high end you can see that 14*15 = 210 which is > 200.
    13*14 = 182 which is less than 200. So, the highest integer is 13

    Hence C which has a range 4 - 13

    yvonne12 Master | Next Rank: 500 Posts Default Avatar
    Joined
    07 Feb 2007
    Posted:
    144 messages
    Post Mon Mar 05, 2007 5:07 pm
    thanks buddy.

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