HCL Placement: Sample Questions 22 - 23 of 57
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Question 22
Question MCQ▾
Which of the following about the following two declarations is true?
i) int ⚹ F ()
ii) int (⚹ F) ()
Choices
Choice (4) | |
---|---|
a. | The first declaration is a function returning a pointer to an integer and the second is a pointer to function returning int |
b. | i & ii are identical |
c. | i & ii are different ways of declaring pointer to a function |
d. | The first is a correct declaration and the second is wrong |
Answer
a.Explanation
In the first statement one function F is returning to a pointer which is returning an integer value. In the second statement, pointer F is returning to a function which is again returning to an integer value. Both declarations are different from each other, but both are correct.
Question 23
Question MCQ▾
Total population of a village is 64000. Out of this 65% is literate. 60% of the total population is male. Out of the total illiterate population, males and female are in the ratio 3: 4. What is the total number of illiterate males?
Choices
Choice (4) | |
---|---|
a. | 12800 |
b. | 3200 |
c. | 9600 |
d. | 6400 |
Answer
c.Explanation
- Total population of a village is 64000. Out of this 65% are literate and rest 35% people are illiterate. 60% of 64000 people are male and rest 40% of 64000 are female. Ratio of male and female is .
- 60% of 64000 are males.
- So, number of males =
=
- 35% of 64000 are illiterate.
- So, number of illiterate people =
=
- Ratio of males and females is .
- So, illiterate males are, =
=