# TCS Equations Questions with Answers

Question 1 Time: 00:00:00
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? 10

10

11

11

12

12

13

13

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Question 2 Time: 00:00:00
How many prime numbers less than 100 and greater than 3 are of the form:4x+1 , 5y-1? 11

11

12

12

7

7

2

2

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Question 3 Time: 00:00:00
The current age difference between two persons is 25. 9 years before the elder one's age was 6 times that of the younger one. What is sum of their current ages? 62

62

78

78

53

53

40

40

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Question 4 Time: 00:00:00
For what value of k is (x – 5) a factor of x3 – 3x2 + kx – 10? -8

-8

4

4

3

3

1

1

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Question 5 Time: 00:00:00
Find a two digit number which is doubled and after that add +2 in it and then reverse the number we would get the actual number. (Example : xy * 2 = pq => pq+2 = xy ) 22

22

24

24

25

25

27

27

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Question 6 Time: 00:00:00
x3 + 6x2 + 11x + 6 is divisible by All of these

All of these

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Question 7 Time: 00:00:00
The quantity which must be added to (1 – x) (1 + x2) to obtain x3 is: 2x3 + x2 + x – 1

2x3 + x2 + x – 1

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Question 8 Time: 00:00:00
What is {(x2 + y2) (x – y) – (x – y)3} / (x2y – xy2) equal to? 2

2

1

1

3

3

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Question 9 Time: 00:00:00
Consider the following statements
I. x + 3 is the factor of x3 + 2x2 + 3x + 8.
II. x – 2 is the factor of x3 + 2x2 + 3x + 8.
Which of the statements given above is/are correct? Only I

Only I

Only II

Only II

Both I and II

Both I and II

Neither I nor II

Neither I nor II

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Question 10 Time: 00:00:00
If {a + (1 / a)}2 = 3, then the value of a3 + (1 / a3) is 1

1

2

2

3

3

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