1
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
Three fair dice are thrown. What is the probability of getting a total greater than or equal to 15 ?
A
$\frac{19}{216}$
B
$\frac{1}{12}$
C
$\frac{17}{216}$
D
$\frac{5}{54}$
2
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
The probability that a person hits a target is 0.5. What is the probability of at least one hit in 4 shots ?
A
$\frac{1}{8}$
B
$\frac{1}{16}$
C
$\frac{15}{16}$
D
$\frac{7}{8}$
3
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
During war, one ship out of 5 was sunk on an average in making a certain voyage. What is the probability that exactly 3 out of 5 ships would arrive safely?
A
$\frac{16}{625}$
B
$\frac{32}{625}$
C
$\frac{64}{625}$
D
$\frac{128}{625}$
4
NDA Mathematics 4 September 2022
MCQ (Single Correct Answer)
+2.5
-0.83
Change Language
A card is drawn from a pack of 52 cards. A gambler bets that it is either a spade or an ace. The odds against his winning are
A
9 ∶ 4
B
35 ∶ 17
C
17 ∶ 35
D
4 ∶ 9
EXAM MAP
Medical
NEETAIIMS
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
Civil Services
UPSC Civil Service
Defence
NDA
Staff Selection Commission
SSC CGL Tier I
CBSE
Class 12