Mathematical operation and symbol notation

Mathematical operation and symbol notation

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Mathematical operation and symbol notation Tutorial

Verbal Reasoning

Eligibility Test
Logical order of words
Mathematical operation and symbol notation
Clock and calender
Problem Based on ages
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Linear Arrangement
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Grid and Matrices
Syllogism
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Statement and Courses of Action
Statement and Conclusion
Cause and Effect
Grouping and Team Formation
Assertion and Reason
Situation Reaction Test

Direction: In the following questions, which one of the four interchanges in signs and numbers would make the given equation correct?

  1. (6 ÷ 2) x 3 = 0








  1. View Hint View Answer Discuss in Forum

    On interchanging signs 'x' to '-' and 2 to 3
    (6 ÷ 3) - 2 = 0
    ⇒ 2 - 2 = 0
    ⇒ 0 = 0

    Correct Option: C

    On interchanging signs 'x' to '-' and 2 to 3
    (6 ÷ 3) - 2 = 0
    ⇒ 2 - 2 = 0
    ⇒ 0 = 0

  1. (3 ÷ 4) + 2 = 2








  1. View Hint View Answer Discuss in Forum

    On interchanging signs '+' to '÷' and 2 to 3
    (2 + 4) ÷ 3 = 2
    ⇒ 6 ÷ 3 = 2 ⇒ 2 = 2

    Correct Option: C

    On interchanging signs '+' to '÷' and 2 to 3
    (2 + 4) ÷ 3 = 2
    ⇒ 6 ÷ 3 = 2 ⇒ 2 = 2

  1. 4 x 6 - 2 = 14








  1. View Hint View Answer Discuss in Forum

    Interchange '-' to '+' and 2 to 6 and try

    Correct Option: B

    On interchanging '-' to '+' and 2 to 6
    4 x 2 + 6 = 14
    ⇒ 8 + 6 = 14
    ⇒ 14 = 14

Direction: Correct the following equations by interchanging the two signs.

  1. 32 x 2 2 ÷ (62 - 9) + 12 = 33








  1. View Hint View Answer Discuss in Forum

    Lets try all options one by one.

    Correct Option: A

    If we interchange symbols '-' and '÷', the equation becomes
    9 x 4 - (36 ÷ 9) + 1
    = 9 x 4 - 36/9 + 1
    = 36 - 4 + 1
    = 33

  1. 3 - 9 x 27 + 9 ÷ 3 = 3










  1. View Hint View Answer Discuss in Forum

    Lets try all options one by one.

    Correct Option: E

    If we interchange 'x' and '-' , the equation changes into
    3 x 9 - 27 + 9 ÷ 3 = 27 - 27 + 3 = 3