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Home Verbal Reasoning Mathematical Operations Comments

  • Question
  • If 879 = 9, 625 = 1 and 586 = 9, then 785 =?


  • Options
  • A. 6
  • B. 7
  • C. 8
  • D. 9

  • Correct Answer


  • Explanation

    879 ? (7 + 9) - 8 = 8
    625 ? (2 + 5) - 6 = 1
    and 586 ? (8 + 6) - 5 = 9
    Similarly, 785 ? (8 + 5) - 7 = 6


  • Mathematical Operations problems


    Search Results


    • 1. 
      If 2 & 6 % 7 = 33, 4 & 6 % 8 = 54, then what will be the value of 6 % 8 & 9?

    • Options
    • A. 95
    • B. 77
    • C. 99
    • D. None of these
    • Discuss
    • 2. 
      If 2 3 ÷ 4 = 2, 4 4 ÷ 8 = 32, then what will be the value of 6 2 ÷ 4?

    • Options
    • A. 9
    • B. 10
    • C. 8
    • D. 12
    • Discuss
    • 3. 
      Select the correct combination of mathematical sign to replace * signs and to balance the given equation.
      15 * 24 * 3 * 6 * 17

    • Options
    • A. + ÷ - =
    • B. + x = ÷
    • C. - x = +
    • D. - ÷ + =
    • Discuss
    • 4. 
      Which one of the four interchange in signs or numbers would make the given equation correct?
      6 x 4 + 2 = 16

    • Options
    • A. + and x, and 4
    • B. + and x, 2 and 4
    • C. + and x, 4 and 6
    • D. None of these
    • Discuss
    • 5. 
      Statements:
      H © T, T % M, M ? F
      Conclusions:
      I. F S T II. H ? M

    • Options
    • A. if only conclusion I is true
    • B. if only conclusion II is true
    • C. if either conclusion I or II is true
    • D. if neither conclusion I nor II is true
    • Discuss
    • 6. 
      If given, 12 (169) 5, 4 (20) 2 and 1 (26) 5, then 7 (?) 3

    • Options
    • A. 78
    • B. 68
    • C. 58
    • D. 36
    • Discuss
    • 7. 
      Select the correct combination of mathematical signs to replace * signs and to balance the given equation.
      5 * 6 * 5 * 8 * 14

    • Options
    • A. + - x =
    • B. x ÷ + =
    • C. ÷ x = -
    • D. + x - ÷
    • Discuss
    • 8. 
      If '-' mean 'x', 'x' means '+', '+' means '÷' and '÷' means '-', then
      40 x 12 + 3 - 6 ÷ 60 =?

    • Options
    • A. 44
    • B. 16
    • C. 7.95
    • D. 4
    • Discuss
    • 9. 
      If '+' means '÷', 'x' means '+', '-' means 'x' and '÷' means '-', then which of the following equation is correct?

    • Options
    • A. 36 + 6 x 3 + 2 = 20
    • B. 36 + 6 - 3 x 2 = 20
    • C. 36 x 6 + 3 - 2 < 20
    • D. 36 x 6 + 3 x 2 > 20
    • Discuss
    • 10. 
      Statements ::
      D > B, C > K, K ? N, B < C, N < B
      Conclusions ::
      I. D > N
      II. C ? K

    • Options
    • A. Only Conclusion I follows
    • B. Only Conclusion II follows
    • C. either Conclusion I or II follows
    • D. neither Conclusion I nor II follows
    • Discuss


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