Mathematical operation and symbol notation

Mathematical operation and symbol notation

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Mathematical operation and symbol notation Tutorial

Verbal Reasoning

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Alphabet Test
Problem Based on ages
Clock and calender
Mathematical operation and symbol notation
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Logical Connectivity
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Number Series
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Coding Decoding
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Theme Detection
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Matching Definitions
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Time Sequence
Ranking Test
Inserting and Missing Character
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
  1. Which of the following sets of operation with the usual notations replacing the starts in the order given makes the statements valid ?
    √100 * √16 * √225 * √1








  1. View Hint View Answer Discuss in Forum

    √100 + √16
    = √225 -√1

    Correct Option: B

    √100 + √16
    = √225 -√1
    10 + 4 = 15 - 1
    ⇒ 14 = 14

  1. Select the correct combination of mathematical signs to replace '*' signs and to balance the given equation.
    24 * 34 * 2 * 5 * 12








  1. View Hint View Answer Discuss in Forum

    From option (c),
    24 = 34 ÷ 2 - 5 + 12
    ⇒ 24 = 17 - 5 + 12
    ⇒ 24 = 29 - 5
    → 24 = 24

    Correct Option: C

    From option (c),
    24 = 34 ÷ 2 - 5 + 12
    ⇒ 24 = 17 - 5 + 12
    ⇒ 24 = 29 - 5
    → 24 = 24

  1. If A means '-' , B means '+', C means 'x', and D means '÷' then 32   D   4   B   7   C   2  A  6










  1. View Hint View Answer Discuss in Forum

    After replacing the sign according to the question
    32   D  4   B 7   C 2   A 6
    = 32 ÷ 4 + 7 x 2 - 6 = 8 + 7 x 2 - 6

    Correct Option: D

    32   D  4   B 7   C 2   A 6
    = 32 ÷ 4 + 7 x 2 - 6 = 8 + 7 x 2 - 6
    = 8 + 14 - 6 = 22 - 6 = 16

  1. If K denotes 'X', B denotes '÷', 'T' denotes '-' and 'M' denotes '+', then 40   B   8   T   6   M 3   K   4 = ?










  1. View Hint View Answer Discuss in Forum

    ∵ 40   B   8   T   6   M 3   K   4 = ?
    ⇒ 40 ÷ 8 - 6 + 3 x 4 = ?
    ⇒ 5 - 6 + 12 = ?

    Correct Option: B

    ∵ 40   B   8   T   6   M 3   K   4 = ?
    ⇒ 40 ÷ 8 - 6 + 3 x 4 = ?
    ⇒ 5 - 6 + 12 = ?
    ⇒ 17 - 6 = ?
    ∴ ? = 11

  1. 16 (27) 43, 29 (?) 56, 36 (12) 48








  1. View Hint View Answer Discuss in Forum

    Here, Right number - Left number = Middle number

    Correct Option: C

    Here, Right number - Left number = Middle number
    As, 43 - 16 = 27, 48 - 36 = 12
    similarly, 56 - 29 = 27
    ∴ ? = 27