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


Related Questions to study

Grade-8
MathematicsVideo

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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MathematicsVideo

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

MathematicsGrade-8
  1. x + 1
  2. x + 2
  3. 2x
  4. x - 1
parallel
Grade-8
Mathematics

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

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

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

MathematicsGrade-8
  1. x + 2
  2. x + 1
  3. x
  4. x - 1
Grade-8
Mathematics

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
Grade-8
Mathematics

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
parallel
Grade-8
Mathematics

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
  4. fraction numerator 3 x over denominator 6 end fraction = 15

If 6 is added to 3 times of a number, it becomes 15. This statement in the form of an equation is

MathematicsGrade-8
  1. 3x + 6 = 15
  2. 3x – 6 = 15
  3. 3x + 15 = 6
  4. fraction numerator 3 x over denominator 6 end fraction = 15
Grade-8
Mathematics

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
  3. 40 + x = 15
  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
Grade-8
MathematicsVideo

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

  1. x - 5 = 6
  2. x + 5 = 6
  3. x over 5 = 6
  4. 5x = 6

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

MathematicsGrade-8
  1. x - 5 = 6
  2. x + 5 = 6
  3. x over 5 = 6
  4. 5x = 6
parallel
Grade-8
MathematicsVideo

Seven times a number is 42. This statement in the form of an equation is

  1. x + 7 = 42
  2. 7x = 42
  3. x over 7 = 42
  4. x – 7 = 42

Seven times a number is 42. This statement in the form of an equation is

MathematicsGrade-8
  1. x + 7 = 42
  2. 7x = 42
  3. x over 7 = 42
  4. x – 7 = 42
Grade-8
MathematicsVideo

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

  1. x + 15 = - 5
  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
Grade-8
MathematicsVideo

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

MathematicsGrade-8
  1. x + 9 = 25
  2. x – 9 = 25 
  3. 9x = 25
  4. x over 9 = 25
parallel
Grade-8
Mathematics

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

MathematicsGrade-8
  1. x – 10 = 20
  2. x + 10 = 20    
  3. 10x = 20
  4. x over 10 = 20
Grade-8
Mathematics

The degree of the equation x² – 2x + 1 = x² – 3 is

  1. 1
  2. 2
  3. 0
  4. 3

The degree of the equation x² – 2x + 1 = x² – 3 is

MathematicsGrade-8
  1. 1
  2. 2
  3. 0
  4. 3
Grade-8
Mathematics

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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