Linear Equations in One Variable-MCQ

Multiple choice questions

Linear Equation in One Variable

1. What do we get when we transpose 5/2 to RHS in the equation x/4 + 5/2 = -3/3?

I. x/4 = -3/4 + 5/2

II. x/4 = -5/2 + ¾

III. x/4 = -3/4 + (-5/2)

IV. none of these

2. In the equation 3x = 4-x, transposing -x to LHS we get

I. 3x - x = 4

II. 3x + x = 4

III. -3x + x = 4

IV. -3x - x = 4

3. If x/3 + 1 = 7/15, then which of the following is correct?

I. x/3 = 7/15 - 1

II. x/3 = -7/15 + 1

III. x/3 = -7/15 - 1

IV. none of these

4. If 7x+15 = 50, then which of the following is the root of the equation?

I. -5

II. 65/7

III. 5

IV. 1/5

5. If 2x/5 = 4, the value of x is-

I. 10

II. -10

III. -8/5

IV. 8/5

6. If the sum of two consecutive numbers is 71 and one number is x, then the other number is-

I. x + (x+1) = 71

II. x + (x+2) = 71

III. x + x = 71

IV. none of these

7. Two year ago my age was x years, then what was my age 5 years ago?

I. X + 7

II. X - 2 - 5

III. X - 5

IV. X- 3

8. How old will I be after 10 years, if my age before 10 years was ‘x’ years?

I. X + 20

II. X - 20

III. X + 10

IV. X ‐ 10

9. If the difference of two consecutive number is 15 and greater of them is x then the smaller number is:

I. 16

II. 14

III. 8

IV. 7

10. If x is an even number, which is the next odd number?

I. X + 1

II. X + 2

III. X - 1

IV. X - 2