TCS Placement: Sample Questions 409 - 411 of 502
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Question 409
Write in Short Short Answer▾
Write the equivalent pointer expression for referring the same element a [i] [j] [k] [l] ?
EditExplanation
a[i] == ⚹(a+i)
a[i][j] == ⚹(⚹(a+i)+j)
a[i][j][k] == ⚹(⚹(⚹(a+i)+j)+k)
a[i][j][k][l] == ⚹(⚹(⚹(⚹(a+i)+j)+k)+l)
Question 410
Question MCQ▾
On a 26 question test, 5 points were deducted for each wrong answer and 8 points were added for right answers. If all the questions were answered how many were correct if the score was zero.
Choices
Choice (4) | |
---|---|
a. | 10 |
b. | 11 |
c. | 13 |
d. | 12 |
Answer
a.Explanation
- In a 26 question test, 5 points were deducted for each wrong answer and 8 points were added for right answers.
- All 26 questions are answered and resultant score is zero.
- We are asked to find the number of right answered questions.
- For option a) , 10 are correct, i.e..
16 are incorrect, i.e..
So,
- For option b) , 11 are correct, i.e..
15 are incorrect, i.e..
So,
- For option c) , 13 are correct, i.e..
13 are incorrect, i.e..
So,
- For option d) , 12 are correct, i.e..
14 are incorrect, i.e..
So,
- We can see among all options, for option a) only, resultant score is zero.
Question 411
Explanation
- Divide the given series into odd and even terms series.
- Odd term series: 3, 7,15, 31, …
- Even term series: 22,45, ? …
- Looking at the analogy, we can conclude that next term is one more than twice of its previous term.
- Like,
- Following the same pattern,
- So, missing term will be 91.