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  • Question
  • Simplify 39.96% of 649.85 ÷ 13.07 = 45.14 - ?


  • Options
  • A. 25
  • B. 26
  • C. 27
  • D. 28

  • Correct Answer
  • 25 

    Explanation

    This can be easily simplified by Approximation process

    Given 39.96% of 649.85  ÷ 13.07 = 45.14 - ? can be written as 

    40% of 650  ÷ 13 = 45 - ?

     

    40   x   650 100 13   =   45   -   ? ?   =   45   -   20 ?   =   25 .

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    Simplification problems


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    • 1. Simplify the following : 4 15 × 3 13 + ? = 20% of 120

    • Options
    • A. 10
    • B. 24
    • C. 36
    • D. 40
    • Discuss
    • 2. 72 ÷ 52 × 3272 ÷ 52 of 32 ÷ 5.25

    • Options
    • A. 3/5
    • B. 3/6
    • C. 3/7
    • D. 3/8
    • Discuss
    • 3. What is value of P+QP-Q if PQ=7 ?

    • Options
    • A. 1/3
    • B. 2/3
    • C. 4/3
    • D. 5/3
    • Discuss
    • 4. If a ? (1/a) = b, b ? (1/b) = c and c ? (1/c) = a, then what is the value of (1/ab) + (1/bc) + (1/ca)?

    • Options
    • A. ? 3
    • B. ? 6
    • C. ? 1
    • D. ? 9
    • Discuss
    • 5. If x = 11, the value of x5 - 12x4 + 12x3 - 12x2 + 12x - 1 is

    • Options
    • A. 11
    • B. 10
    • C. 12
    • D. -10
    • Discuss
    • 6. In each question two equations numbered I and II are given,you haveto solve both the equation and choose the correctanswer. I. x2+ 30x + 81 = 0 II.y2-9y -162 = 0

    • Options
    • A. x > y
    • B. x>y
    • C. x < y
    • D. x
    • Discuss
    • 7. Solve the following : 27 - [38 - {46 - (15 - 13 - 2)}]

    • Options
    • A. 31
    • B. 35
    • C. 30
    • D. 29
    • Discuss
    • 8. If a+b+c = 0, then (a^3 + b^3 + c^3)^2 = ?

    • Options
    • A. 27abc
    • B. 9abc
    • C. 3abc
    • D. 9a^2b^2c^2
    • Discuss
    • 9. Compute : 1112 / 139 - 5

    • Options
    • A. 557/67
    • B. -3
    • C. 556/67
    • D. 3
    • Discuss
    • 10. If x +y = ?3 and x - y = ?2, then the value of 8xy (x2 + y2) is

    • Options
    • A. 6
    • B. ?6
    • C. 5
    • D. ?5
    • Discuss


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