Free Practice Questions for Mathematical-operation in Reasoning

Practice questions here, for every subject and every exam. Unlimited questions for unlimited attempts, given with answers and explanations.


Question 1:

If $+$ means ' $\div$ ' - means ' +, $\times$ means '- '' and $\div$ means '$\times$ ', then what will be the value of the following expression?

$ 18 \div 6-27+3 \times 12=\text { ? }$

यदि $+$ का अर्थ ' $\div$ ',$-$ का अर्थ ' $+$ ',$\times$ का अर्थ ' $-$ ' और "$\div$ ' का अर्थ $\times$ है, तो निम्नलिखित व्यंजक का मान क्या होगा?

$18 \div 6-27+3 \times 12=\text { ? } $

Question 2:

Which two signs should be interchanged to make the given equation correct?

$ 14+4 \div 5-18 \times 2=25 $

दिए गए समीकरण को सही करने के लिए किन दो चिह्नों को आपस में बदलना चाहिए?

$ 14+4 \div 5-18 \times 2=25 $

Question 3:

If sign ${\times}$ is interchanged with ' $\div$ ' and number ' 3 ' is interchanged with ' 2 ', then which of the following equations would be correct?

Question 4:

Which two numbers should be interchanged to make the following equation correct?

$ 8+12 \div 9 \times 6-4=12 \div 6 \times 8+9-1 $

Question 5:

Which of the following interchanges of signs and numbers would make the given equation correct?

$ 18-8 \div 12 \times 6+10=12 $

Question 6:

Which two signs should be interchanged to make the given equation correct?

$9+12 \div 6 \times 8-4=14$

Question 7:

Which two signs should be interchanged to make the following equation correct?

$10-15 \times 9+6 \div 3=9$

Question 8:

Which of the following interchanges of signs and numbers would make the given equation correct?

$ 12 \times 18 \div 3-6+4=5 $

Question 9:

Which two numbers should be interchanged to make the given equation correct?

$4 \times 2-8+9 \div 3=9 \div 3+4 \times 2-8$

Question 10:

Which two signs should be interchanged to make the following equation correct?

$ 18+12 \times 8-6 \div 3=9 $

Question 11:

Which of the following interchanges of signs and numbers would make the given equation correct?

$12 \div 4+2-6 \times 3=3 \div 12+6 \times 2-4$

Question 12:

Which two numbers should be interchanged to make the given equation correct?

$ 9+4 \div 2-6 \times 3=4 \div 3 \times 6-9+1 $

Question 13:

Which two numbers should be interchanged to make the given equations correct?

$ 6 \times 3-8 \div 2+5=8 \div 2+3 \times 5-6 $

Question 14:

Which of the following interchanges of signs and numbers would make the given equation correct?

$ 8 \div 2-6 \times 4+3=13 $

Question 15:

Which two signs should be interchanged to make the given equation correct?

$ 4+8 \times 12 \div 6-4=8 $

Question 16:

"Which two signs should be interchanged with each other to satisfy the given equation?
$625 \times 5+93-22 \div 8=42$

Question 17:

 If ' a ' denotes ' $\times$ ', ' b ' denotes '$\div$', ' c ' denotes ' - ', and ' d ' denotes ' + ', then what is the value of the following expression?

55 a 5 b 5 c 5 d 3

Question 18:

Which two signs should be interchanged to make the given equation correct?

$42 \div 23+870 \times 3-5=541$

Question 19:

In an imaginary mathematical system, $P$ denotes subtraction, $\mathrm{Q}$ denotes division, $\mathrm{R}$ denotes addition and $\mathrm{S}$ denotes multiplication. All other rules of mathematics are the same as in the existing system. What is the value of the given expression?

106 R 115 Q 23 S 7 P 19

Question 20:

If the signs ' ÷ ' and '-' are interchanged and the digits ' 2 ' and ' 4 ' are interchanged, then what will be the value of the following expression?

426 ÷648-312