Mathematical operation and symbol notation


  1. If + means ÷, - means x, x mean +, ÷ means -, then
    90 + 18 - 6 x 30 ÷ 4 = ?
    1. 64
    2. 65
    3. 56
    4. 48

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    65

    Correct Option: B

    65


  1. If + = x , - = ÷ , x = + , ÷ = - , then which is the correct equation out of the following ?
    1. 18 ÷ 6 + 4 - 2 ÷ 3 = 22
    2. 18 + 6 - 4 x 2 ÷ 3 = 26
    3. 18 x 6 - 4 + 7 x 8 = 47
    4. 18 - 6 x 7 ÷ 2 + 8 = 63

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    18 + 6 - 4 x 2 ÷ 3 = 26
    After chaning, the equation is
    L.H.S., 18 x 6 ÷ 4 + 2 - 3
    108 ÷ 4 + 2 - 3
    27 + 2 - 3
    29 - 3 = 26 R.H.S.

    Correct Option: B

    18 + 6 - 4 x 2 ÷ 3 = 26
    After chaning, the equation is
    L.H.S., 18 x 6 ÷ 4 + 2 - 3
    108 ÷ 4 + 2 - 3
    27 + 2 - 3
    29 - 3 = 26 R.H.S.



  1. Select the correct combination of mathematical signs to replace * signs and to balance the given equation.
    5 * 6 * 5 * 8 * 14
    1. + - x =
    2. x ÷ + =
    3. ÷ + = -
    4. + x - ÷

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    5 x 6 ÷ 5 + 8 = 14

    Correct Option: B

    5 x 6 ÷ 5 + 8 = 14


  1. Insert the arithmetical operations in the following numerical figure-
    4_3_4 = 48
    1. + +
    2. x +
    3. + -
    4. x x

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    4 x 3 x 4 = 48

    Correct Option: D

    4 x 3 x 4 = 48



Direction: In these question, relationship between different element is shown in the statements. These statements are followed by two conclusions.

  1. Statements:
    A > B > C, D > E > F, D > C
    Conclusions:
    I.E > C II. F > B
    1. If only conclusion I follows
    2. If only conclusion II follows
    3. If either conclusion I or II follows
    4. If neither conclusion I nor II follows
    5. If both conclusion I and II follow.

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    A > B < C < D > E > F
    E and C can't be compared. Hence II does not follow.
    Z and J can't be compared. Hence I does not follows. Consequently II does not follows either.

    Correct Option: D

    A > B < C < D > E > F
    E and C can't be compared. Hence II does not follow.
    Z and J can't be compared. Hence I does not follows. Consequently II does not follows either.