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22 questions · timed · auto-graded

Question 11 Mark
If ' $\uparrow$ ' is denoted as ' + ', $\downarrow$ ' is denoted as ' $x$ ', $\rightarrow$ ' is denoted as ' $\div$ ' and ' $\leftarrow$ ' is denoted as ' - ', then find the value of $132 \rightarrow 12 \downarrow 10 \leftarrow 14 \uparrow 21$.
Answer
117
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Question 21 Mark
Which of the following two signs must be interchanged to make the given equation correct?
$15+9 \div 3-6 \times 2=39$
Answer
$\div$ and $\times$
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Question 31 Mark
If ' $M$ ' denotes ' - ', ' $N$ ' denotes ' + ', ' $O$ ' denotes ' $X$ ' and ' $P$ ' denotes ' $\div$ ', then find the value of 5 N 140 P 20015 M 18.
Answer
92
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Question 41 Mark
If ' - ' stands for ' + ', ' + ' stands for ' - ', $X$ ' stands for ' $\div$ ' and ' $\div$ ' stands for ' $x$ ', then which of the following is correct?
Answer
$10-8 \div 4 \times 8+9=5$
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Question 51 Mark
If ' $P$ ' stands for ' + ', ' $Q$ ' stands for ' - ', 'R' stands for ' ×' and ' $S$ ' stands for ' $\div$ ', then the value of 14 R 10 P 42 S 2 Q $8=$
Answer
153
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Question 61 Mark
Which of the following interchanges of symbols would make the given equation correct?
$8 \times 20-5+9 \div 3=38$
Answer
$- and \div$
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Question 71 Mark
If '@' means ' $x$ ', ‘()' means '-,'\#' means ' + ' and ' $\$$ ' means ' $\div$ ', then find the value of $175 \$ 25$ \# 5 @ 20 (c) 3 @ 10 .
Answer
77
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Question 81 Mark
Which sequence of mathematical symbols (in the same order) can replace ${ }^{* \prime}$ signs in the given equation to balance the equation?
$7 * 7 * 2 * 1=12$
Answer
$+, -, \times $
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Question 91 Mark
If ' + ' and ' $\div$ ' and ' 3 ' and ' 6 ' are interchanged, then which of the following expressions will be true?
Answer
$3+6 \div 2=4$
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Question 111 Mark
If 'when' stands for ' + ', 'are' stands for ' - ,' you' stands for ' $\times$ ' and 'going' stands for ' - ', then what will be the value of 14 when 6 are 3 you 20 going 4 ?
Answer
5
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Question 121 Mark
Select the correct set of symbols which will fit (in the same order) in the blank spaces of given expression to make it correct.
9 ___ 24 ___ 12 ___ 6 ___3 = 0
Answer
$-, \div, $\times$),+$
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Question 131 Mark
If ' $a-b^{\prime}=a \times b, ' a+b^{\prime}=a \div b, ' a \div b^{\prime}=a-b$ and ' $a \times b^{\prime}=a+b$, then what is the value of the given expression?
$48+6-8 \div 18 \times 7$
Answer
53
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Question 141 Mark
If $P$ ' means ' + ', ' $Q$ ' means ' - ', 'R' means ' $\div$ ' and ' $S$ ' means ' $x$ ', then find the value of 17 P 24 Q 52R 4 S 3.
Answer
2
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Question 151 Mark
Which of the following two signs must be interchanged to make the given equation correct?
$16 \div 8-42+7 \times 3=6$
Answer
$\div$ and +
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Question 161 Mark
In the following equation, two numbers need to be interchanged to make it correct. Choose the pair of numbers from the given options.
$30-21 \times 12 \div 7+15=9$
Answer
21 and 12
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Question 171 Mark
If $A \text{#} B = A^B$ and $A * B = B^A$, then what is the value of $(2 \text{#} 4)^*\left(0^* 5\right)$ ?
Answer
1
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Question 181 Mark
If 'P' denotes '+', 'Q' denotes '$\because$', 'R' denotes 'x' and 'S' denotes ' - ', then find the value of 7 P 35 Q 5 R 3 S 4.
Answer
24
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Question 191 Mark
If a # b = a $\div$ b, a % b = a $\times$ b, a * b = a + b and a $ b = a - b, then find the value of 48 # 8 % 3 * 4 S 9 .
Answer
13
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Question 201 Mark
Which of the following interchanges of signs would make the given equation true?
$28 \times 4+7 \div 6-9=40$
Answer
$\times$ and $\div$
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Question 211 Mark
Select the correct set of symbols which will fit (in the same order) in the blank spaces of given expression to make it correct.
$28-6-25-5-4=2$
Answer
$-, x, \div,+$
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Question 221 Mark
If ' + ' denotes ${ }^{\prime} \div$ ', '×' denotes ' + ', - ' denotes ' × and $' \div$ ' denotes $'-$, then what is the value of the given expression?
$48+8-3 \div 4 \times 6$
Answer
20
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MCQ - REASONING STD 8 Questions - Vidyadip