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  • Question
  • What is the simplified result of following the steps below in order? 1.Add 5y to 2x 2.Multiply the sum by 3 3.Substract x+y from the product


  • Options
  • A. 5x + 14y
  • B. 5x + 16y
  • C. 5x + 5y
  • D. None

  • Correct Answer
  • 5x + 14y 

    Explanation

    Step 1 :2x + 5y

    Step 2 :3(2x + 5y) = 6x + 15y

    Step 3 :(6x + 15y) - (x +y) = 6x + 15y - x - y (watch that last minus sign!)

    This gives 5x + 14y

  • Tags: GRE

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    • 1. A straight fence is to be constructed from posts 6 inches wide and separated by lengths of chain 5 feet long. If a certain fence begins and ends with a post, which of the following could be the length of the fence in feet? (12 inches = 1 foot).

    • Options
    • A. 17
    • B. 18
    • C. `19
    • D. 20
    • Discuss
    • 2. The sum of three prime numbers is 100. If one of them exceeds another by 36, then one of the numbers is

    • Options
    • A. 17
    • B. 29
    • C. 43
    • D. none
    • Discuss
    • 3. 25 divided by 7

    • Options
    • A. 3.571
    • B. 35.71
    • C. 0.351
    • D. 0.0357
    • Discuss
    • 4. Maheshwari wants to buy 7 floors in an 68 storied building whose numbering stars from 1 upto 68. But she has to follow certain rules which are as follows : 1) None of the floor should be a prime number 2) None of the digit of the floor should be a prime number 3) Maheshwari cannot buy the 1st floor as it is being assigned to the architect. So how many options are left with Maheshwari to buy the floors ?

    • Options
    • A. 11
    • B. 17
    • C. 13
    • D. 19
    • Discuss
    • 5. A thief steals half the total number of loaves of bread plus 1/2 loaf from a bakery. A second thief steals half the remaining number of loaves plus 1/2 loaf and so on. After the 5th thief has stolen there are no more loaves left in the bakery. What was the total number of loaves did the bakery have at the beginning ?

    • Options
    • A. 21
    • B. 11
    • C. 17
    • D. 31
    • Discuss
    • 6. K men agree to donate a gift of Rs. L to trust. If three men drop out how much more will each have to contribute towards the purchase of the gift ?

    • Options
    • A. L / (k-3)
    • B. k / (L-3)
    • C. 2K / 3L-K
    • D. 3L / K(K-3)
    • Discuss
    • 7. From the given series of numbers, if half of the second highest number is subtracted from the third highest number, what will be the value ? 519 328 746 495 837

    • Options
    • A. 146
    • B. 203
    • C. 345
    • D. 96
    • Discuss
    • 8. There is a 3 digited number. 3rd digit is the square root of the 1st digit. 2nd digit is the sum of 1st and 3rd. And that number is divisible by 2,3,6,7. What is that number?

    • Options
    • A. 121
    • B. 943
    • C. 462
    • D. None
    • Discuss
    • 9. Find the regular polygon whose interior angel is 150 more than exterior angle. note the total sum of interior and exterior angle should be 180 at one point ?

    • Options
    • A. 12
    • B. 24
    • C. 36
    • D. 6
    • Discuss
    • 10. Which of the following is equivalent to 0.565656...?

    • Options
    • A. 56/100
    • B. 56/1000
    • C. 56/99
    • D. 560/90
    • Discuss


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