NDA Mathematics 3 September 2023 | NDA Year Wise Previous Years Questions

Mathematics

PREVIOUS NEXT

NDA Mathematics 3 September 2023

MCQ (Single Correct Answer)

+2.5

-0.83

A fair coin is tossed 6 times. What is the probability of getting a result in the 6^th toss which is different from those obtained in the first five tosses ?

$\frac{7}{16}$

$\frac{1}{16}$

$\frac{1}{32}$

$\frac{1}{64}$

NDA Mathematics 3 September 2023

MCQ (Single Correct Answer)

+2.5

-0.83

If H is the Harmonic Mean of three numbers 10C4, 10C5, and 10C6, then what is the value of $\frac{270}{H}$ ?

$\frac{14}{17}$

$\frac{17}{14}$

$\frac{1}{31}$

NDA Mathematics 3 September 2023

MCQ (Single Correct Answer)

+2.5

-0.83

In a class, there are n students including the students P and Q. What is the probability that P and Q sit together if seats are assigned randomly?

$\frac{1}{n}$

$\frac{2}{n}$

$\frac{4}{n}$

$\frac{1}{2n}$

NDA Mathematics 3 September 2023

MCQ (Single Correct Answer)

+2.5

-0.83

In a Binomial distribution B(n, p), n = 6 and 9P(X = 4) = P(X = 2). What is p equal to ?

$\frac{1}{4}$

$\frac{1}{2}$

$\frac{3}{4}$

$\frac{4}{5}$

PREVIOUS NEXT