Questions

M.C.Q. [1 Marks Each]

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15 questions · auto-graded multiple-choice test.

MCQ 11 Mark
What is the value of $5 x^{25}-3 x^{32}+2 x^{-12}$ as $x=1$ ?
  • A
    $0$
  • B
    $2$
  • $4$
  • D
    None of these
Answer
Correct option: C.
$4$
C
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MCQ 21 Mark
If we subtract $4 a-7 a b+3 b+12$ from $12 a-9 a b+5 b-3$, then the answer, is
  • A
    $8 a+2 a b+2 b+15$
  • B
    $8 a+2 a b+2 b-15$
  • $8 a-2 a b+2 b-15$
  • D
    $8 a-2 a b-2 b-15$
Answer
Correct option: C.
$8 a-2 a b+2 b-15$
C
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MCQ 41 Mark
$(x-y)(x+y)+(y-z)(y+z)+(z-x)(z+x)$ is equal to
  • $0$
  • B
    $x y+y z+z x$
  • C
    $x+y+z$
  • D
    $x^2+y^2+z^2$
Answer
Correct option: A.
$0$
A
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MCQ 51 Mark
The number of like terms in $8 x^3, 16 x^2 y,-8 x^3, 12 x y^2, 6 x^3$, is
  • A
    2
  • B
    1
  • 3
  • D
    4
Answer
Correct option: C.
3
C
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MCQ 61 Mark
Area of a rectangle with length 5aband breadth $13 a c^2$ is
  • A
    $65 a^2 b c$
  • B
    $35 a^2 b c^2$
  • $65 a^2 b c^2$
  • D
    $65 a b c^2$
Answer
Correct option: C.
$65 a^2 b c^2$
C
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MCQ 71 Mark
a (b + c) = ab + ac is
  • A
    commutative property
  • B
    closure property
  • distributive propert
  • D
    associative property
Answer
Correct option: C.
distributive propert
C
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MCQ 81 Mark
The product of a monomlal and binomial is a
  • binomial
  • B
    monomial
  • C
    trinomial
  • D
    None of these
Answer
Correct option: A.
binomial
A
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MCQ 91 Mark
Product of $6 a^2-7 b+5 a b$ and $2 a b$ is
  • A
    $12 a^3 b-14 a b^2+10 a b$
  • $12 a^3 b-14 a b^2+10 a^2 b^2$
  • C
    $6 a^2-7 b+7 a b$
  • D
    $12 a^2 b-7 a b^2+10 a b$
Answer
Correct option: B.
$12 a^3 b-14 a b^2+10 a^2 b^2$
B
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MCQ 101 Mark
Product of the monomials, $-15 p,-13 q^2, p q$ is
  • A
    $-165 p^2 q^3$
  • $195 p^2 q^3$
  • C
    $195 p^3 q^2$
  • D
    $-195 p^3 q^2$
Answer
Correct option: B.
$195 p^2 q^3$
B
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MCQ 111 Mark
Sum of $a-b+a b, b+c-b c$ and $c-a-a c$ is
  • A
    $a b-2 c+a c-b c$
  • B
    $2 c-a b-a c-b c$
  • $2 c+a b-a c-b c$
  • D
    $2 c-a b+a c-b c$
Answer
Correct option: C.
$2 c+a b-a c-b c$
C
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MCQ 121 Mark
Which is the like term as $36\text{ abc}^2?$
  • A
    $2 \times 18 \times a \times a \times b \times c \times c$
  • B
    $3 \times 13 \times a \times b \times c \times c \times c$
  • $3 \times 17 \times a \times c \times b \times c$
  • D
    $4 \times 5 \times b \times c \times c \times a \times a$
Answer
Correct option: C.
$3 \times 17 \times a \times c \times b \times c$
C
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MCQ 131 Mark
In a polynomial, the exponents of the variables are always
  • A
    integers
  • B
    positive integers
  • non-negative integers
  • D
    non-positive integers
Answer
Correct option: C.
non-negative integers
C
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MCQ 141 Mark
Which of the following are like terms?
  • A
    $5 x y z^2,-3 x y^2 z$
  • $-5 x y z^2, 7 x y z^2$
  • C
    $5 x y z^2, 8 x^2 y z$
  • D
    $5 x y z^2, x^2 y^2 z^2$
Answer
Correct option: B.
$-5 x y z^2, 7 x y z^2$
B
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MCQ 151 Mark
Which of the following is a binomial?
  • A
    $13 \times b+b$
  • B
    $6 b^2+7 a+2 c$
  • $45\left(b^2+a\right)$
  • D
    $13 a \times 3 b \times 5 c$
Answer
Correct option: C.
$45\left(b^2+a\right)$
C
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M.C.Q. [1 Marks Each] - MATHS STD 8 Questions - Vidyadip