Advertisements
Advertisements
प्रश्न
A bag contains 4 red, 5 black and 6 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is:
white
Advertisements
उत्तर
\[\text{ Number of red balls } = 4\]
\[\text{ Number of black balls } = 5\]
\[\text{ Number of white balls } = 6\]
\[\text{ Total number of balls in the bag } = 4 + 5 + 6 = 15\]
\[\text{ Therefore, the total number of cases is } 15 . \]
\[\text{ Let A denote the event of getting a white ball } . \]
\[\text{ Number of favourable outcomes. number of white balls } =6\]
\[P\left( A \right) = \frac{\text{ Number of favourable outcomes }}{\text{ Total number of outcomes }} = \frac{6}{15} = \frac{2}{5}\]
संबंधित प्रश्न
In a simultaneou throw of a pair of dice, find the probability of getting:
a doublet of odd numbers
Three coins are tossed together. Find the probability of getting:
exactly two heads
A card is drawn at random from a pack of 52 cards. Find the probability that the card drawn is:
a spade
An urn contains 10 red and 8 white balls. One ball is drawn at random. Find the probability that the ball drawn is white.
A bag contains 4 red, 5 black and 6 white balls. A ball is drawn from the bag at random. Find the probability that the ball drawn is:
red or white
If we have 15 boys and 5 girls in a class which carries a higher probability? Getting a copy belonging to a boy or a girl. Can you give it a value?
If you have a collection of 6 pairs of white socks and 3 pairs of black socks. What is the probability that a pair you pick without looking is
white?
In a school, only 2 out of 5 students can participate in a quiz. What is the chance that a student picked at random makes it to the competition?
It is impossible to get a sum of 14 of the numbers on both dice when a pair of dice is thrown together.
The probability of getting an ace out of a deck of cards is greater than 1.
