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  • Question

  • x = y - (50/y), where x and y are both > 0 If the value of y is doubled in the equation above, the value of x will


  • Options
  • A. decrease
  • B. stay the same
  • C. increase four fold
  • D. increase to more than double

  • Correct Answer
  • increase to more than double 

    Explanation

    The best approach is to pick a number that satisfies the rules that x and y are greater than 0. So for example you could choose 25 for y.

    The value of x before doubling is then 25 - 50/25 = 23

    The value after doubling y will be 50 - 50/50 = 49, which is more than double.

    • Tags: GRE

    Numbers problems

    Search Results

    • 1. For how many integer values of n will the value of the expression 4n + 7 be an integer greater than 1 and less than 200?

    • Options
    • A. 48
    • B. 49
    • C. 50
    • D. 51
      • Discuss
    • 2. 934+7217-9115=?

    • Options
    • A. 7 + 719/1020
    • B. 9 + 817/1020
    • C. 9 + 719/1020
    • D. 7 + 817/1020
      • Discuss
    • 3. The largest 5 digit number exactly divisible by 95 is ______.

    • Options
    • A. 99936
    • B. 99935
    • C. 99940
    • D. 99933
      • Discuss
    • 4. The average value of property of Agil, Mugilan and Anithais Rs. 130cr. The Property of Agil is 20cr greater than the property value of Mugilan and Anitha property value is 50cr greater than the Agil property value. The value ofproperty of Anitha is

    • Options
    • A. 120 cr
    • B. 170 cr
    • C. 100 cr
    • D. 150 cr
      • Discuss
    • 5. Find the square root of 15625.

    • Options
    • A. 125
    • B. 145
    • C. 150
    • D. 135
      • Discuss
    • 6. The average of 3 consecutive even numbers is A. If next 5 even numbers are added, then what is the average of these 8 numbers?

    • Options
    • A. A + 3
    • B. A + 4
    • C. A + 5
    • D. A + 7
      • Discuss
    • 7. The average of 8 consecutive integers is 23/2. What is the average of first three integers?

    • Options
    • A. 9
    • B. 19/2
    • C. 8
    • D. 10
      • Discuss
    • 8. What should be the missing digit so that the number 275_476 becomes exactly divisible by 11?

    • Options
    • A. 6
    • B. 4
    • C. 2
    • D. 3
      • Discuss
    • 9. Which of the numbers given below is NOT rational?

    • Options
    • A. 3?8
    • B. 3?64
    • C. ?64
    • D. ?8
      • Discuss
    • 10. 30% of a number exceeds 25% of the same number by 27. What is the value of the number?

    • Options
    • A. 540
    • B. 270
    • C. 108
    • D. 90
      • Discuss

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