Aptitude [TCS Placement]: Sample Questions 33 - 35 of 174

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Question 33

Aptitude
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Short Answer▾

If A is travelling at 72 km per hour on a highway. B is travelling at a speed of 25 meters per second on a highway. What is the difference in their speeds in m/sec.

Explanation

  • Speed of A =
  • Converting the speed of A in m/sec,
  • Speed of B =
  • Taking the difference of speed, speed of B - speed of A =
  • The difference between A and B is .

Question 34

Aptitude

Question

MCQ▾

Satish earns 240 weekly. 12 % of big amount + earning weekly = 540, what is the big amount?

Choices

Choice (4)

a.

3200

b.

1000

c.

2500

d.

3600

Answer

c.

Explanation

Let big amount be ₹ x.

Satish earns ₹ 240 weekly.

We are given, 12 % of big amount + earning weekly = 540

So, big amount is ₹ 2500.

Question 35

Aptitude
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Short Answer▾

What is the difference between C and C ++ ?

Explanation

  • C follows the procedural programming paradigm while C ++ is a multi-paradigm language (procedural as well as object oriented)
  • In case of C, the data is not secured while the data is secured (hidden) in C ++
  • C is a low-level language while C ++ is a middle-level language (Relatively, Please see the discussion at the end of the post)
  • C uses the top-down approach while C ++ uses the bottom-up approach
  • C is function-driven while C ++ is object-driven
  • C ++ supports function overloading while C does not
  • We can use functions inside structures in C ++ but not in C
  • The NAMESPACE feature in C ++ is absent in case of C
  • The standard input & output functions differ in the two languages
  • C ++ allows the use of reference variables while C does not

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