## Exam-GK-MCQ-Questions.Com

Home - Gate Computer Science - Practice Questions - Engineering Maths - Numbers and Algebra - Numbers and Algebra Section 1

# Engineering Maths - Numbers and Algebra - Numbers and Algebra Section 1 Online Exam Quiz

Important questions about Engineering Maths - Numbers and Algebra - Numbers and Algebra Section 1. Engineering Maths - Numbers and Algebra - Numbers and Algebra Section 1 MCQ questions with answers. Engineering Maths - Numbers and Algebra - Numbers and Algebra Section 1 exam questions and answers for students and interviews.

Options

A : 0

B : 1

C : 2

D : x 2 - y 2

Options

A : h = a!

B : h = n!

C : h ≥ n!

D : h ≥ a * n

Options

A : 481

B : 477

C : 468

D : 121

Options

A : 3 / (1+x²)

B : 3 / (1-x²)²

C : 3 / (1+x²)²

D : 3 / (1-x²)

Options

A : 1 : 2

B : 2 : 3

C : 2 : 1

D : 1 : 3

### 49. A group of four numbers has only one prime number amongst them. Which of the following must be true about the group? I. HCF of the four numbers of the group is .either 1 or equal to that prime number. II. LCM of the four numbers of the group is same as product of the prime number and LCM of the remaining three numbers. III. Product of four numbers is equal to product of the prime number * HCF of the group * LCM of the group.

Options

A : I only

B : II only

C : I and II only

D : All of these

Options

A : 12.8

B : 12

C : 13.5

D : 14.6

Options

A : 5

B : 6

C : 7

D : 8

Options

A : 384

B : 192

C : 432

D : 48

### 11. HCF and LCM of two numbers is given. It is possible to find out the two numbers uniquely if I. either sum or difference between the two numbers is known. II. HCF of two numbers = LCM of two numbers. III. (LCM/HCF)= Prime number.

Options

A : I and II only

B : II  only

C : II and III only

D : II and III only

Options

A : 1220

B : 1250

C : 22030

D : 220030

Options

A : 17

B : 12

C : 6

D : 3

### 14. HCF of y 3 - 4y and 4y (y 3 + 8) is

Options

A : y(y + 2)

B : y - 2

C : 2 (y + 2)

D : (y + 2)(y 2 - 2y + 4)

Options

A : 36 m

B : 30 m

C : 48 m

D : 60 m

Options

A : 7

B : 29

C : 41

D : 67

Options

A : 56.8

B : 58.2

C : 62.4

D : 60.8

Options

A : 4722

B : 4725

C : 4728

D : 4731

### 19. Which of the following is true?

Options

A : Sum of four consecutive even numbers is always divisible by 8.

B : Sum of four consecutive odd numbers is always divisible by 8.

C : Product of any n consecutive natural numbers may not be divisible by n!.

D : Product of 4 consecutive odd numbers is always divisible by 15.

Options

A : 5050

B : 2500

C : 2525

D : 5000

Options

A : 0

B : 1

C : 2

D : 3