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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