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    Mathematics
    Grade-8
    Easy

    Question

    In a two-digit number, the unit’s digit is x and the ten’s digit is y. Then, the number is

    1. 10y + x
    2. 10x + y
    3. 10y - x
    4. 10x - y

    The correct answer is: 10y + x

    10 y space plus space x space i s space t h e space c o r r e c t space c h o i c e L e t space t h e space t e n s space d i g i t space i s space y a n d space t h e space u n i t s space d i g i t s space i s space x T h e n space t h e space n u m b e r space w i l l space b e space 10 y space plus space x comma space i s space t h e space a n s w e r

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    The difference between the two numbers is 21. The larger number is x. The smaller number is

    1. 21 + x
    2. 21 - x
    3. x - 21
    4. - x - 21

    The difference between the two numbers is 21. The larger number is x. The smaller number is

    MathematicsGrade-8
    1. 21 + x
    2. 21 - x
    3. x - 21
    4. - x - 21
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    x is an odd number. The largest odd number preceding x is

    1. x - 1
    2. x - 2
    3. x - 3
    4. x - 4

    x is an odd number. The largest odd number preceding x is

    MathematicsGrade-8
    1. x - 1
    2. x - 2
    3. x - 3
    4. x - 4
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    If x is an even number, then the consecutive even number is

    1. x + 1
    2. x + 2
    3. 2x
    4. x - 1

    If x is an even number, then the consecutive even number is

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    1. x + 1
    2. x + 2
    3. 2x
    4. x - 1
    parallel
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    The largest number of the three consecutive numbers is x + 1. Then, the smallest number is

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    2. x + 1
    3. x
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    The largest number of the three consecutive numbers is x + 1. Then, the smallest number is

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    1. x + 2
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    The solution of the equation 5 over x = 2 is

    1. 10
    2. 2 over 5
    3. 5 over 2
    4. 1 over 10

    The solution of the equation 5 over x = 2 is

    MathematicsGrade-8
    1. 10
    2. 2 over 5
    3. 5 over 2
    4. 1 over 10
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    On subtracting 30 from two times a number, we get 56. This statement in the simplified form of an equation is

    1. x – 15 = 28
    2. 2x + 30 = 56
    3. 30 – 2x = 56   
    4. fraction numerator 30 over denominator 2 x end fraction = 56

    On subtracting 30 from two times a number, we get 56. This statement in the simplified form of an equation is

    MathematicsGrade-8
    1. x – 15 = 28
    2. 2x + 30 = 56
    3. 30 – 2x = 56   
    4. fraction numerator 30 over denominator 2 x end fraction = 56
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    If 6 is added to 3 times of a number, it becomes 15. This statement in the form of an equation is

    1. 3x + 6 = 15
    2. 3x – 6 = 15
    3. 3x + 15 = 6
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    If 6 is added to 3 times of a number, it becomes 15. This statement in the form of an equation is

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    A number, when subtracted from 40, results in 15. This statement in the form of an equation is

    1. 40 – x = 15
    2. x – 40 = 15
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    4. 40x = 15

    A number, when subtracted from 40, results in 15. This statement in the form of an equation is

    MathematicsGrade-8
    1. 40 – x = 15
    2. x – 40 = 15
    3. 40 + x = 15
    4. 40x = 15
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    A number, when divided by 5 gives 6. This statement in the form of an equation is

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    A number, when divided by 5 gives 6. This statement in the form of an equation is

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    1. x - 5 = 6
    2. x + 5 = 6
    3. x over 5 = 6
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    Seven times a number is 42. This statement in the form of an equation is

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    3. x over 7 = 42
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    Seven times a number is 42. This statement in the form of an equation is

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    3. x over 7 = 42
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    If 15 is subtracted from a number, it becomes -5. This statement in the form of an equation is

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    2. x – 15 = 5
    3. x + 15 = 5
    4. x – 15 = - 5

    If 15 is subtracted from a number, it becomes -5. This statement in the form of an equation is

    MathematicsGrade-8
    1. x + 15 = - 5
    2. x – 15 = 5
    3. x + 15 = 5
    4. x – 15 = - 5
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    If 9 is added to a number, it becomes 25. This statement in the form of an equation is

    1. x + 9 = 25
    2. x – 9 = 25 
    3. 9x = 25
    4. x over 9 = 25

    If 9 is added to a number, it becomes 25. This statement in the form of an equation is

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    1. x + 9 = 25
    2. x – 9 = 25 
    3. 9x = 25
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    parallel
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    The statement ‘on adding 10 to a number, the number becomes 20’ in the form of an equation is

    1. x – 10 = 20
    2. x + 10 = 20    
    3. 10x = 20
    4. x over 10 = 20

    The statement ‘on adding 10 to a number, the number becomes 20’ in the form of an equation is

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    1. x – 10 = 20
    2. x + 10 = 20    
    3. 10x = 20
    4. x over 10 = 20
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    The degree of the equation x² – 2x + 1 = x² – 3 is

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    1. 1
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    The linear equation in one variable, x, is

    1.  4 over x equals x over 4
    2. 1 over x plus fraction numerator 1 over denominator x minus 1 end fraction equals 1
    3. x over 2 plus x over 3 plus 1 fourth
    4. x² + 2x + 3 = 0

    The linear equation in one variable, x, is

    MathematicsGrade-8
    1.  4 over x equals x over 4
    2. 1 over x plus fraction numerator 1 over denominator x minus 1 end fraction equals 1
    3. x over 2 plus x over 3 plus 1 fourth
    4. x² + 2x + 3 = 0
    parallel

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