Q. 864.3( 3 Votes )

# A dice is rolled once. What is the probability that the number on top will be

(a) Odd

(b) Greater than 5

(c) A multiple of 3

(d) Less than 1

(e) A factor of 36

(f) A factor of 6

Answer :

False

(a) All odd numbers are 1, 3, 5

No. of odd numbers = 3

⇒ Total number of favourable outcomes = 3

⇒ All Numbers on a dice = 6

⇒ Total number of outcomes = 6

(b) Number greater than 5 is 6

No. of numbers greater than 5 = 1

⇒ Total number of favourable outcomes = 1

⇒ All Numbers on a dice = 6

⇒ Total number of outcomes = 6

(c) Multiples of 3 are 3 and 6

No. of Multiples of 3 = 2

⇒ Total number of favourable outcomes = 2

⇒ All Numbers on a dice = 6

⇒ Total number of outcomes = 6

(d) There is no number less than 1

Hence, probability of less than 1 = 0

(e) Factors of 36 are 1, 2, 3, 4 and 6

No. of Factors of 36 = 5

⇒ Total number of favourable outcomes = 5

⇒ All Numbers on a dice = 6

⇒ Total number of outcomes = 6

(f) Factors of 6 are 1, 2, 3 and 6

No. of Factors of 6 = 4

⇒ Total number of favourable outcomes = 4

⇒ All Numbers on a dice = 6

⇒ Total number of outcomes = 6

Rate this question :

Rahul, Varun and Yash are playing a game of spinning a coloured wheel. Rahul wins if spinner lands on red. Varun wins if spinner lands on blue and Yash wins if it lands on green. Which of the following spinner should be used to make the game fair?

NCERT - Mathematics ExemplarA coin is tossed 200 times and head appeared 120 times. The probability of getting a head in this experiment is

NCERT - Mathematics ExemplarA bag contains 6 red, 8 black and 4 white balls. A ball is drawn at random. What is the probability that ball drawn is not black?

RD Sharma - MathematicsAn urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.

RD Sharma - Mathematics