Advertisements
Advertisements
Question
Hundred identical cards are numbered from 1 to 100. The cards are well shuffled and then a card is drawn. Find the probability that the number on the card drawn is greater than 85.
Solution
There are 100 cards from which one card is drawn.
Total number of elementary events = n(S) = 100
From numbers 1 to 100, there are 15 numbers which are greater than 85 i.e. {86, 87, ......, 98, 99, 100}
Favorable number of events = n(E) = 15
Probabilty of selecting a card with a number greater than 85
= `(n(E))/(n(S))`
= `15/100`
= `3/20`
APPEARS IN
RELATED QUESTIONS
In a T.T. match between Geeta and Ritu, the probability of the winning of Ritu is 0.73. Find the probability of not winning of Ritu.
Which of the following cannot be the probability of an event?
- `3/5`
- 2.7
- 43%
- – 0.6
- – 3.2
- 0.35
From 25 identical cards, numbered 1, 2, 3, 4, 5, ......, 24, 25; one card is drawn at random. Find the probability that the number on the card drawn is a multiple of 3.
A card is drawn from a well-shuffled pack of 52 cards. Find the probability that the card drawn is a red card.
A card is drawn from a well-shuffled pack of 52 cards. Find the probability that the card drawn is a red or a king.
A bag contains 16 coloured balls. Six are green, 7 are red and 3 are white. A ball is chosen, without looking into the bag. Find the probability that the ball chosen is white.
A card is drawn from a pack of 52 cards. Find the probability that the card drawn is a red card.
From a well-shuffled deck of 52 cards, one card is drawn. Find the probability that the card drawn is a face card.
From a well-shuffled deck of 52 cards, one card is drawn. Find the probability that the card drawn is a card with number 5 or 6.
Two dice are thrown at the same time. Find the probability that the sum of the two numbers appearing on the top of the dice is less than or equal to 12.
