NDA (National Defence Academy) Mathematics: Questions 247 - 254 of 384

Access detailed explanations (illustrated with images and videos) to 384 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.

Rs. 250.00 or

How to register?

Question number: 247

» Statistics and Probability » Measures of Central Tendency » Mode

Edit

Appeared in Year: 2012

MCQ▾

Question

What is the mode for the data 20,20,20,21,21,21,21,2122,22,22,22,22,22,22,23,23,23,23,24,24,25?

Choices

Choice (4) Response

a.

7

b.

21

c.

25

d.

22

Question number: 248

» Matrices and Determinants » Adjoint and Inverse of a Square Matrix

Edit
MCQ▾

Question

If and then what is equal to?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 249

» Algebra » Quadratic Equations with Real Coefficients

Edit

Appeared in Year: 2012

MCQ▾

Question

What is the sum of the squares of the roots of the equation

Choices

Choice (4) Response

a.

270

b.

422

c.

327

d.

424

Question number: 250

» Algebra » Logarithms and Their Applications

Edit
MCQ▾

Question

What is the value of

Choices

Choice (4) Response

a.

3

b.

2

c.

7

d.

1

Question number: 251

» Trigonometry » Angles and Their Measures in Degrees and in Radians

Edit
MCQ▾

Question

What is the angle subtended by pole at a distance on the ground in sexagesimal measure?

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 252

» Analytical Geometry of Two and Three Dimensions » Direction Cosines and Direction Ratios

Edit

Appeared in Year: 2012

MCQ▾

Question

What is the cosine of angle between the planes and

Choices

Choice (4) Response

a.

b.

c.

d.

All of the above

Question number: 253

» Statistics and Probability » Definition of Probability

Edit
MCQ▾

Question

What is the number of ways that boys and girls can be seated so that boys and girls alternate?

Choices

Choice (4) Response

a.

120

b.

14,400

c.

12

d.

72

Question number: 254

» Algebra » Conversion from Decimal System to Binary System

Edit
MCQ▾

Question

The number in decimal system is expressed in binary system by

Choices

Choice (4) Response

a.

1010100

b.

1111001

c.

1000010

d.

1001001