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Test: Mathematical Operations - 2 - Railways MCQ


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10 Questions MCQ Test - Test: Mathematical Operations - 2

Test: Mathematical Operations - 2 for Railways 2024 is part of Railways preparation. The Test: Mathematical Operations - 2 questions and answers have been prepared according to the Railways exam syllabus.The Test: Mathematical Operations - 2 MCQs are made for Railways 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Mathematical Operations - 2 below.
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Test: Mathematical Operations - 2 - Question 1
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(5068 / 28) x 4 = ?

Detailed Solution for Test: Mathematical Operations - 2 - Question 1
  • To solve (5068 / 28) x 4, start by dividing 5068 by 28.
  • 5068 divided by 28 equals 181.
  • Next, multiply 181 by 4.
  • 181 x 4 equals 724.
  • Thus, the final answer is 724.
Test: Mathematical Operations - 2 - Question 2
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In the following question, by using which mathematical operator will the expression become correct?

18 ? 6 ? 9 ? 27

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Test: Mathematical Operations - 2 - Question 3
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In the following question, correct the equation by interchanging two signs.

6 + 8 ÷ 4 – 4 = 8

Test: Mathematical Operations - 2 - Question 4
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In a group of buffaloes and ducks the number of legs are 24 more than twice the number of heads. What is the number of buffaloes in the group? 
Detailed Solution for Test: Mathematical Operations - 2 - Question 4

Let the number of buffaloes be x and number of ducks be y.
Now, number of heads = x + y
Number of legs = 4x + 2y  .......(1) 
But given that legs = 2(x + y) + 24 ......(2)
solving (1) & (2),we get
4x + 2y = 2x + 2y + 24 
--> x = 12.
Therefore number of buffaloes =12

Test: Mathematical Operations - 2 - Question 5
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The following equation is incorrect. Which two signs should be interchanged to correct the equation? 15 x 12 + 40 ÷ 40 - 6 = 21
Test: Mathematical Operations - 2 - Question 6
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If "–" means "added to", "+" means "divided by", "÷" means "multiplied by", "x" means "subtracted from", then 13 + 12 x 9 ÷ 3 – 6 = ?
Test: Mathematical Operations - 2 - Question 7
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If '+' means subtraction, '÷' means addition, '<' means multiplication and '>' means division, then find the value of the given statement,

The value of 9 ÷ 7 < 8 > (4>2) + 5 will be
Test: Mathematical Operations - 2 - Question 8
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What is x squared plus x squared?
Detailed Solution for Test: Mathematical Operations - 2 - Question 8

In an algebraic expression, like terms are terms that contain the same variables raised to the same powers. Calculating x-squared plus x-squared is a matter of combining like terms. 

Now x2 + x2 = 2x2

Hence, x-squared plus x-squared is equal to 2 times x squared.

Test: Mathematical Operations - 2 - Question 9
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If "÷" denotes "multiplied by", "+" denotes "subtracted from", "–" denotes "added to" and "x" denotes "divided by", then which of the following equation is true?
Test: Mathematical Operations - 2 - Question 10
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Find out the two signs to be interchanged for making following equation correct

5 + 3 x 8 - 12 / 4 =3
Detailed Solution for Test: Mathematical Operations - 2 - Question 10

On interchanging - and /, we get the equation as

5 + 3 x 8 / 12 - 4 = 3

or 5 + 3 x (2/3) - 4 = 3

or 3 = 3, which is true.

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