Match the column
class7-maths-chapter-12-mcq-1.png
  • p -> ii, q -> iii, r -> i
  • p -> i, q -> iii, r -> ii
  • p -> iii, q -> ii, r -> i
  • p -> i, q -> ii, r -> iii
The coefficient of xy in $3x^2zy -16xyz -2z^2 x$ is
  • -16 z
  • 16 z
  • 16
  • -16
Identify the binomial out of the following
  • $3xy^2 + 5y – x^2y$
  • $x^2y – 5y – x^2y$
  • xy + yz + zx
  • $3xy^2 + 5y – xy^2$
what should be added to -4 to get 2xy
  • 2xy -4
  • 2xy
  • 2xy + 4
  • 4 -2xy
The value of $3x^2 -5x -3$ when x=1 is
  • 5
  • 0
  • -1
  • -5
Sum of the products of a and b, b and c and c and a
  • a+b+c
  • (a+b)(b+c)(c+a)
  • ab + bc + ac
  • abc
The value of p if the value of $2x^2 + 2x – 3p+1$ equals to 10, when x = 0?
  • -2
  • 3
  • -3
  • 0
The rate of planting the grass is Rs x per square metre. Find the cost of planting the grass on a triangular lawn whose base is y metres and height is z metres.
  • Rs xyz
  • Rs xyz/2
  • Rs x(y+z)
  • None of these
The sum of  $4x^2 +3x -4$  , $3x^2 – 2x +6$
  • $12x^2 +x +2$
  • $7x^2 +x +24$
  • $7x^2 +x -24$
  • $7x^2 +x +2$
$6x^2 – 3x^2=$ ?
  • $3x^2$
  • $9x^2$
  • $18x^2$
  • $-3x^2$
$(3x^2 - \frac {2}{5}x +\frac {7}{3} ) – (-2x^2 - \frac {4}{5} x + \frac {5}{3})=$ ?
  • $5x^2 - \frac {2}{5}x - \frac {2}{3}$
  • $5x^2 +\frac {2}{5}x - \frac {2}{3}$
  • $5x^2 +\frac {2}{5}x + \frac {2}{3}$
  • $5x^2 -\frac {2}{5}x + \frac {2}{3}$
Multiply $3ab$ by $6ab^2$
  • $18a^2b^3$
  • $18a^3b^2$
  • $-18a^2b^3$
  • $9a^2b^3$
$x(y-z) + (y(y-z) + z(x-y)$=
  • $x+y+z$
  • $2(x+y+z)$
  • 0
  • $(x-y+z)$
$(x^3+y^3 ) \times (x^2 –y^2)$=
  • $x^5 + y^5- x^2y^2( x+y)$
  • $x^5 –y^5 + x^2y^2( x+y)$
  • $x^5 –y^5- x^2y^2( x-y)$
  • $x^5 –y^5- x^2y^2( x+y)$
Simplify   (4x +3)(3x-4) + (4x-3)(x +2)
  • 16x^2 +2x -18
  • 16x^2 -2x +18
  • 16x^2 -2x -18
  • 16x^2 +x +18
Value of $a^3 + a^2b + ab^2 + b^3$ at a = 1 and b = – 2
  • 1
  • 0
  • 5
  • -5
Add $2a^2 + 4b -3c$  and $a^2 + 3b +6c$
  • $2a^2 +7b +3c$
  • $3a^2 +7b +c$
  • $3a^2 +4b +3c$
  • $3a^2 +7b +3c$
Add $(4x^2 - \frac {1}{6}x + \frac {5}{2})$ , $(- \frac{1}{5}x^2 + \frac {1}{3}x - \frac {3}{2})$
  • $\frac {19}{5} x^2 + \frac {1}{6}x +1$
  • $\frac {19}{5} x^2 + \frac {1}{2}x +1$
  • $\frac {22}{5} x^2 + \frac {1}{6}x +1$
  • $\frac {19}{5} x^2 + \frac {1}{4}x +1$
$(4a^2 +2a -5) – (3a^2 -4a -8)$=
  • $a^2 +8a +3$
  • $a^2 +6a -3$
  • $a^2 +6a +3$
  • $a^2 -6a +3$
Subtract   $(\frac {7}{3}x^2 - \frac {2}{3} x^3 + \frac {5}{2}x -3)$ from $( \frac {5}{3}x^2 - \frac {4}{7}x^3 +\frac {7}{3} x+8)$
  • $\frac {2}{21} x^3 -\frac {2}{3}x^2 +\frac {1}{6}x +11$
  • $\frac {2}{21} x^3 -\frac {1}{3}x^2 -\frac {1}{6}x -11$
  • $\frac {2}{21} x^3 -\frac {1}{3}x^2 -\frac {1}{6}x +11$
  • $\frac {2}{21} x^3 -\frac {2}{3}x^2 -\frac {1}{6}x +11$
0 h : 0 m : 1 s

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