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16 questions · timed · auto-graded

MCQ 11 Mark
The value of the expression $2 m^2+3 n^2 m+\frac{7}{2} n^2+8$, when $m=-2$ and $n=2$ is
  • A
    1
  • B
    -4
  • 6
  • D
    -14
Answer
Correct option: C.
6
C
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MCQ 21 Mark
Which of the following has the highest degree?
  • A
    $x^5+2 x^5$
  • B
    $2^8$
  • $-\frac{3 a^3 b^2 c}{4}$
  • D
    $\frac{7 a^6 b^5}{-5 a^3 b^4}$
Answer
Correct option: C.
$-\frac{3 a^3 b^2 c}{4}$
C
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MCQ 31 Mark
Which of the following is a polynomial?
  • A
    $x-\frac{1}{x}$
  • B
    $x+\sqrt{x}$
  • $\frac{x}{\sqrt{2}}-\frac{1}{\sqrt[3]{2}}$
  • D
    $x^{\frac{1}{2}}+x^{\frac{-1}{2}}$
Answer
Correct option: C.
$\frac{x}{\sqrt{2}}-\frac{1}{\sqrt[3]{2}}$
C
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MCQ 41 Mark
Which of the following is a binomial?
  • A
    $a^2-6 b^2+1000$
  • $-7 x^2 y+x y^2+3 x^2 y$
  • C
    $m a^2 b-(m+n) a^2 b^2+n a b^2$
  • D
    $s t^2-s t+1$
Answer
Correct option: B.
$-7 x^2 y+x y^2+3 x^2 y$
B
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MCQ 51 Mark
The expression $-3 h^4+7(h-1)$ is a
  • A
    monomial
  • B
    binomial
  • trinomial
  • D
    none of these
Answer
Correct option: C.
trinomial
C
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MCQ 71 Mark
Which of the following is a pair of like terms?
  • A
    $a b, x y$
  • B
    $2 x z^2,-7 x^2 z$
  • C
    $4 a^2 b^2,-\frac{1}{3} a^2 b c$
  • $0.9 x y,-\frac{2}{11} x y$
Answer
Correct option: D.
$0.9 x y,-\frac{2}{11} x y$
D
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MCQ 91 Mark
The sum of the polynomials bn-8 am-8 cp, 5 cpam + 2 bn and 6 am +5 bn-3 cp is equal to
  • A
    $-2 a m+2 b n-4 c p$
  • B
    $-2 a m+8 b n-2 c p$
  • C
    $-3 a m+2 b n-4 c p$
  • $-3 a m+8 b n-6 c p$
Answer
Correct option: D.
$-3 a m+8 b n-6 c p$
D
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MCQ 111 Mark
Which of the following statement is true about the expression given below?
$-14 m^2 l-17 m^2+4 n^2-15 l m^2-\left(-6 m^2-10 n^2+18 l^2 m^2\right)-12 m^2 l^2$
  • A
    The simplified form is a trinomial $-59 m^2 l-11 m^2+14 n^2$.
  • B
    The simplified form is a trinomial $-35 m^2 l-23 m^2+6 n^2$.
  • C
    The simplified form is a polynomial $-29 m^2 l-23 m^2-6 n^2+6 l^2 m^2$.
  • The simplified form is a polynomial $-29 m^2 l-11 m^2+14 n^2-30 l^2 m^2$
Answer
Correct option: D.
The simplified form is a polynomial $-29 m^2 l-11 m^2+14 n^2-30 l^2 m^2$
D
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MCQ 121 Mark
What is sum of the numerical coefficients of the variables m and n in the expression given by the statement? "Circumference of the circle of radius m subtracted from the circumference of the circle of radius $\frac{n}{2}$.
  • $-\pi$
  • B
    -1
  • C
    3
  • D
    $\pi$
Answer
Correct option: A.
$-\pi$
A
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MCQ 131 Mark
Sonika and Komal are collecting some marbles for their project. Sonika collected 15 red marbles and 6x blue marbles, whereas Komal collected by red marbles and 8x blue marbles. After some time Sonika loses 3y marbles and Komal collected 8 more marbles. How many total number of marbles they both have now, if x = 2 and y = 3?
  • A
    54
  • B
    65
  • 57
  • D
    62
Answer
Correct option: C.
57
C
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MCQ 141 Mark
The cost of entry tickets to an amusement park are different for men and children. A man's ticket costs ₹ 800 and a child's ticket costs ₹ 500.On Monday, the number of men who visited the amusement park was the square of the number of children who visited. How much money was collected by selling entry tickets on Monday?
  • A
    $x^2$
  • $800 x^2+500 x$
  • C
    $800 x+500 x^2$
  • D
    $1300\left(x+x^2\right)$
Answer
Correct option: B.
$800 x^2+500 x$
B
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MCQ 151 Mark
Study the following statements and select the correct option.
$P :$ The number of unlike terms in $4 p q^2-2 q^2 r+q^2 p+3 p q r+q^2 r-8$ is 4 .
Q: An expression having three or more terms is called a trinomial.
  • A
    Both P and Q are true
  • B
    Both P and Q are false
  • P is true but Q is false
  • D
    P is false but Q is true
Answer
Correct option: C.
P is true but Q is false
C
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MCQ 161 Mark
Consider the expression. "5 subtracted from the sum of 5 times u squared and 5 times the product of u and-1". Which of these statements is correct?
  • All terms of the expression are: $5 u^2,-5 u$ and -5 .
  • B
    All terms of the expression are: $5 u^2$ and $-5 u$.
  • C
    All factors of the term $-5 u$ are: 5 and $u$.
  • D
    All factors of the term $5 u^2$ are: 5 and $u$.
Answer
Correct option: A.
All terms of the expression are: $5 u^2,-5 u$ and -5 .
A
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MCQ - MATHS STD 7 Questions - Vidyadip