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10 questions · timed · auto-graded

MCQ 11 Mark
Which one of the following statements is incorrect?
  • A
    If a < b then a - m < b - m
  • B
    If a > b and m > 0 then am > bm
  • If $a < b$ and $m  >0$, then $\frac{a}{m}>\frac{b}{m}$.
  • D
    If $a \neq 0$ and $b \neq 0$, then $a>b \Rightarrow \frac{1}{a}<\frac{1}{b}$.
Answer
Correct option: C.
If $a < b$ and $m  >0$, then $\frac{a}{m}>\frac{b}{m}$.
C
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MCQ 21 Mark
Which one of the following is not a solution to the inequality 2x > 18 - 5 * x'
  • A
    7
  • B
    5
  • C
    3
  • 1
Answer
Correct option: D.
1
D
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MCQ 31 Mark
The solution set of the inequality $17-4 x<7, x \in Z$ is
  • A
    $\{1,2,3, \ldots\}$
  • B
    $\{2,3,4, \ldots\}$
  • $\{3,4,5, \ldots\}$
  • D
    $\{4,5,6, \ldots\}$
Answer
Correct option: C.
$\{3,4,5, \ldots\}$
C
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MCQ 51 Mark
If a > b and m < 0 then which of the following is correct :
  • am < bm
  • B
    am = bm
  • C
    am > bm
  • D
    am and bm cannot be compared
Answer
Correct option: A.
am < bm
A
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MCQ 61 Mark
A gym offers a membership plan where members must attend at least 5 classes but fewer than 15 classes per month. Each class costs ₹ 200. If a member spends y rupees on classes, which of the following options correctly represents the range of values y can take?
  • A
    ₹ 1000 < y < ₹ 3,500
  • ₹ 1000 < y < ₹ 3,000
  • C
    ₹ 1,500 < y < ₹ 3,000
  • D
    ₹ 1,500 < y < ₹ 3,500
Answer
Correct option: B.
₹ 1000 < y < ₹ 3,000
B
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MCQ 71 Mark
Two friends are collecting marbles. Friend A collects 2x - 3 marbles, and friend B collects 3x + 5 marbles, together they collect fewer than 50 marbles. What is the maximum number of marbles friend A can collect?
  • 15
  • B
    17
  • C
    18
  • D
    20
Answer
Correct option: A.
15
A
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MCQ 81 Mark
A school bus can carry 40 students. If each student occupies x square feet and the total space available is less than 120 square feet, what is the maximum space per student?
  • A
    2.5 sq. ft.
  • 3 sq. ft.
  • C
    3.5 sq. ft.
  • D
    4 sq. ft.
Answer
Correct option: B.
3 sq. ft.
B
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MCQ 91 Mark
Given the inequation 3x-5 > 7 and the replacement set {2, 3, 4, 5), which values satisfy the inequation?
  • A
    (2,3)
  • B
    (3, 4, 5)
  • C
    (4, 5)
  • None of these
Answer
Correct option: D.
None of these
D
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MCQ 101 Mark
A school requires that students purchase at least 3 but no more than 10 books for their academic year. Each book costs ₹ 250. The minimum and maximum amounts a student may spend are:
  • ₹ 750 and ₹ 2500
  • B
    ₹ 700 and ₹ 2000
  • C
    ₹ 650 and ₹ 2500
  • D
    ₹ 750 and ₹ 2000
Answer
Correct option: A.
₹ 750 and ₹ 2500
A
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MCQ - MATHS STD 7 Questions - Vidyadip