If each match box contains 50 matchsticks, the number of matchsticks required to

fill n such boxes is

(A} 50+ n

(B} 50n

(C} 50+ n

(D} 50 - n

Amulya is x years of age now. 5 years ago her age was

(A} (5 -x} years (B} (5 + x} years

(C} (x -5) years (D} (5 + x} years

Which of the following represents 6 * x

(A} 6x (B} 6 x (C} 6 +x (D} 6-x

Which of the following is an equation?

(A} X + 1

(B} X - 1

(C} X - 1 = 0

(D} x + 1 > 0

If x takes the value 2, then the value of x + 10 is

(A} 20

(B} 12

(C} 5

(D} 8

If the perimeter of a regular hexagon is x metres, then the length of each of its sides

is

(A} (x + 6) metres

(B} (x + 6) metres

(C} (x -6) metres

(D} (6 + x} metres

Which of the following equations has x = 2 as a solution?

(A} x + 2 = 5

(B} x -2 = 0

(C} 2x + 1 = 0

(D} x + 3 = 6

For any two integers x and y, which of the following suggests that operation of

addition is commutative ?

(A} X + y = y + X

(B} X + y > X

(C} x-y = y-x

(D} X y = y X

Which of the following equations does not have a solution in integers?

(A} x + 1 = 1

(B} x -1 = 3

(C} 2x + 1 = 6

(D} 1-x = 5

In algebra, a x b means ab, but in arithmetic 3 x 5 is

(A} 35 (B} 53 (C} 15 (D} 8

In algebra, letters may stand for

(A} known quantities

(B} unknown quantities

(C} fixed numbers

(D} none of these

"Variable" means that it

(A} can take different values

(B} has a fixed value

(C} can take only 2 values

(D} can take only three values

10 -x means

(A} 10 is subtracted x times

(B} x is subtracted 10 times

(C} x is subtracted from 10

(D} 10 is subtracted from x

Savitri has a sum of Rs x. She spent Rs 1000 on grocery, Rs 500 on clothes and Rs

400 on education, and received Rs 200 as a gift. How much money (in Rs} is left with

her?

(A} x -1700

(B} x -1900

(C} x + 200

(D} x-2100

The perimeter of the triangle shown in Fig. 7 .1 is

{A) 2x + y

(8) x + 2y

(C) X + y

(D) 2x-y

The area of a square having each side x is

{A) X * X

(B) 4x

(C) X + X

(D) 4 + x

The expression obtained when x is multiplied by 2 and then subtracted from 3 is

(A} 2x - 3

(B} 2x + 3

(C} 3 - 2x

(D} 3x - 2

q/2 = 3 has a solution

(A} 6

(B} 8

(C) 3

(D) 2

x - 4 = - 2 has a solution

(B} 2

(C) -6

(D) -2

4/2 = 2 denotes a

(A} numerical equation

(B} algebraic expression

(C} equation with a variable

(D} false statement

Kanta has p pencils in her box. She puts q more pencils in the box. The total number of pencils with her are

(A} p + q

(B} pq

(C} p - q

(D} p q

The equation 4x = 16 is satisfied by the following value of x

(A} 4 (B} 2 (C} 12 (D} -12

I think of a number and on adding 13 to it, I get 27. The equation for this is

(A} x - 27 = 13 (B} x - 13 = 27

(C} X + 27 = 13 (D} X + 13 = 27

The distance (in km} travelled in h hours at a constant speed of 40km per hour is

p kg of potatoes are bought for Rs 70. Cost of 1kg of potatoes (in Rs} is

An auto rickshaw charges Rs 10 for the first kilometre then Rs 8 for each such

subsequent kilometre. The total charge (in Rs) ford kilometres is ____ _

If 7x + 4 = 25, then the value of x is ____ _

The solution of the equation 3x + 7 = -20 is ____ _

'x exceeds y by 7' can be expressed as ____ _

'8 more than three times the number x' can be written as -----

Number of pencils bought for Rs x at the rate of Rs 2 per pencil is ____ _

The number of days in w weeks is ____ _

Annual salary at r rupees per month along with a festival bonus of Rs 2000 is

The two digit number whose ten's digit is 't' and units's digit is 'u' is ____ _

The variable used in the equation 2p + 8 = 18 is ____ _

x metres= __________centimetres

p litres = _____ millilitres

r rupees = _____ paise

If the present age of Ramandeep is n years, then her age after 7 years will be

If I spend f rupees from 100 rupees, the money left with me is _____ rupees.

0 is a solution of the equation x + 1 = 0

The equations x + 1 = 0 and 2x + 2 = 0 have the same solution.

If m is a whole number, then 2m denotes a multiple of 2.

The additive inverse of an integer x is 2x.

If xis a negative integer, - xis a positive integer

2x - 5 > 11 is an equation.

In an equation, the LHS is equal to the RHS.

In the equation 7k- 7 = 7, the variable is 7.

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