Advertisements
Advertisements
प्रश्न
A handbag contained fifty ten rupees note, thirty-five fifty rupees note and fifteen hundred rupee note. One note is drawn from a handbag. What is the probability of getting:
Ten rupees note
उत्तर
Total number of notes = 50 + 35 + 15 = 100
Let E1 represent the event in which the chosen note is a 10 rupee note.
The number of ten rupee notes is 50.
Thus, P(E1) = `"Number of ten rupees note"/"Total number of notes"`
= `50/100`
= `1/2`
APPEARS IN
संबंधित प्रश्न
Three coins are tossed simultaneously, find S and n(S).
Which of the following options shows the highest probability?
If two coins are tossed, find the probability of event getting head on both the coins
If one die is rolled, then find the probability of event that the number on the upper face is greater than 6?
If three coins are tossed simultaneously, find the probability of the event to get no head
A box contains 5 strawberry chocolates, 6 coffee chocolates and 2 peppermint chocolates. If one of the chocolates is picked from the box at random, find the probability of the following events by completing the activity.
Activity : Let ‘S’ is the sample space.
∴ n(S) = 5 + 6 + 2 = 13
Event B: it is a peppermint chocolate.
∴ n(B) = `square`
∴ P(B) = `square/("n"("S"))` .......[Formula]
P(B) = `square/13`
If two dice are rolled simultaneously, find the probability of the following events.
Event B: The sum of the digits on the upper faces is 33
If three coins are tossed simultaneously, find the probability of the following events
Event A: To get no head.
If three coins are tossed simultaneously, find the probability of the following events.
Event B: To get at least two heads.
If One coin and one die are thrown simultaneously, find the probability of the following events.
Event A: To get a tail and an even number
What is the probability that a leap year has 53 Sundays?
A box contains 36 cards, bearing only one number from 1 to 36 on each. If one card is drawn at random, find the probability of an event that the card drawn bears, a complete square number
In the adjoining figure, the arrow rests on any number, after the rotation of the disc. The probability that it will rest on any of the numbers on the disc is equal. Let A be any random event. To find the probability of A, fill in the boxes.
(1) S = `square`
(2) n(S) = `square`
(3) Let A be the event that arrow points at the number which is perfect cube.
A = `square`
∴ n(A) = `square`
(4) ∴ P(A) = `(n(A))/(n(S)) = square/square = square`
A handbag contained fifty ten rupees note, thirty-five fifty rupees note and fifteen hundred rupees note. One note is drawn from a handbag. What is the probability of getting:
Fifty rupees note
A handbag contained fifty ten rupees note, thirty-five fifty rupees note and fifteen hundred rupees note. One note is drawn from a handbag. What is the probability of getting:
Hundred rupees note
In a workshop, there are five machines and the probability of any one of them to be out of service on a day is `1/4`. If the probability that at most two machines will be out of service on the same day is `(3/4)^3k`, then k is equal to ______.
A five digit number is formed by the digits 1, 2, 3, 4, 5 without repetition. If the probability that the number formed is divisible by 4, is P, then 5P is ______.
