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  • Question
  • If 3x+7=x2+p=7x+5 , what is the value of P ?


  • Options
  • A. 17/2
  • B. 25/3
  • C. 33/4
  • D. 41/5

  • Correct Answer
  • 17/2 

    Explanation

     

     

    3 x + 7 = 7 x + 5 = > 7 x - 3 x = 2 = > 4 x = 2 = > x = 2

     

    Now,  3 x + 7 = x 2 + p = 3 2 + 7 = 1 4 + p = > p = 17 2


  • Simplification problems


    Search Results


    • 1. Simplify the following : 373+353+283-3x37x35x28372+352+282-37x35-35x28-37x28 ?

    • Options
    • A. 100
    • B. 1
    • C. 4
    • D. 0
    • Discuss
    • 2. In a slip test, K got the 15th rank and he was 44th from the bottom of the list of passed students. 4 students did not take up the slip test and 3 students were failed. What is the total strenght of the class ?

    • Options
    • A. 63
    • B. 62
    • C. 64
    • D. 65
    • Discuss
    • 3. Twenty times a positive integer is less than its square by 96. What is the integer ?

    • Options
    • A. 42
    • B. 36
    • C. 48
    • D. 24
    • Discuss
    • 4. The average number of visitors of a library in the first 4 days of a week was 58. The average for the 2nd, 3rd, 4th and 5th days was 60.If the number of visitors on the 1st and 5th days were in the ratio 8 : 9. Then what is the number of visitors on the 5th day of the library ?

    • Options
    • A. 54
    • B. 64
    • C. 68
    • D. 72
    • Discuss
    • 5. Given that 100.48 = x, 100.70 = y and xz = y2, then the value of z is close to ___ ?

    • Options
    • A. 3.7
    • B. 2.7
    • C. 3.6
    • D. 2.9
    • Discuss
    • 6. An owner of a Dry fruits shop sold small packets of mixed nuts for Rs. 150 each and large packets for Rs. 250 each. One day he sold 5000 packets, for a total of Rs. 10.50 lakh. How many small packets were sold ?

    • Options
    • A. 2000
    • B. 3000
    • C. 2500
    • D. 3500
    • Discuss
    • 7. Two numbers are such that the sum of twice the first number and thrice the second number is 36 and the sum of thrice the first number and twice the second number is 39. Find the difference between the numbers?

    • Options
    • A. 15
    • B. 3
    • C. 9
    • D. 6
    • Discuss
    • 8. If a - b = 3, a2+b2=29 , find the value of ab.

    • Options
    • A. 10
    • B. 12
    • C. 15
    • D. 18
    • Discuss
    • 9. If x = 1 - q and y = 2q + 1, then for what value of q, x is equal to y ?

    • Options
    • A. 0
    • B. 1
    • C. -1
    • D. -2
    • Discuss
    • 10. 18800÷470÷20=?

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • Discuss


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