Advertisements
Advertisements
Question
Cards numbered from 11 to 60 are kept in a box. If a card is drawn at random from the box, find the probability that the number on the drawn card is divisible by 5
Solution
The cards are numbered from 11 to 60.
∴ Total number of outcomes = 60 − 10 = 50
The numbers from 11 to 60 divisible by 5 are 15, 20, 25, 30, 35, 40, 45, 50, 55 and 60.
So, the favourable number of outcomes are 10.
∴ P(number on the drawn card is divisible by 5) =\[\frac{\text{ Favourable number of outcomes }}{\text{ Total number of outcomes }} = \frac{10}{50} = \frac{1}{5}\]
APPEARS IN
RELATED QUESTIONS
A card is drawn at random from a well-shuffled deck of playing cards. Find the probability that the card drawn is a card of spade or an ace.
Two different dice are rolled together. Find the probability of getting even numbers on both dice.
A piggy bank contains hundred 50 paise coins, fifity ₹1 coins, twenty ₹2 coins and ten ₹5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, find the probability that the coin which fell will be a 50 paise coin
A piggy bank contains hundred 50 paise coins, fifity ₹1 coins, twenty ₹2 coins and ten ₹5 coins. If it is equally likely that one of the coins will fall out when the bank is turned upside down, find the probability that the coin which fell will be of value less than ₹5
All red face cards are removed from a pack of playing cards. The remaining cards are well shuffled and then a card is drawn at random from them. Find the probability that the drawn card is a face card and
Suppose you drop a tie at random on the rectangular region shown in the given figure. What is the probability that it will land inside the circle with diameter 1 m?
A number is selected from numbers 1 to 25. The probability that it is prime is
What is the probability that an ordinary year has 53 Mondays?
Three coins are tossed simultaneously. What is the probability of getting exactly two heads?
A box contains a certain number of balls. Some of these balls are marked A, some are marked B and the remaining are marked C. When a ball is drawn at random from the box P(A) = `1/3` and P(B) = `1/4`. If there are 40 balls in the box which are marked C, find the number of balls in the box.
Three identical coins are tossed together. What is the probability of obtaining:
exactly two heads?
Two coins are tossed together. What is the probability of getting:
(i) at least one head
(ii) both heads or both tails.
From 10 identical cards, numbered 1, 2, 3, ……, 10, one card is drawn at random. Find the probability that the number on the card drawn is a multiple of
2 and 3
Two coins are tossed together. Find the probability of getting: exactly one tail
A die is thrown once. Find the probability of getting:
a number other than 3 and 5
The probability that a non leap year selected at random will contain 53 sundays is ______.
A dice is rolled once. What is the probability that the number on top will be odd
A dice is rolled once. What is the probability that the number on top will be less than 1
A dice is rolled once. What is the probability that the number on top will be a factor of 36
Sonia picks up a card from the given cards.
Calculate the probability of getting a G card
