Advertisements
Advertisements
Question
The probability of getting a job for a person is `x/3`. If the probability of not getting the job is `2/3` then the value of x is
Options
2
1
3
1.5
Solution
1
Explanation;
Hint:
Probability of getting a job = `x/3`
Probability of not getting a job = `1 - x/3`
`2/3 = 1 - x/3`
⇒ `x/3 = 1 - 2/3`
`x/3 = (3 - 2)/3`
⇒ `x/3 = 1/3`
⇒ x = 1
APPEARS IN
RELATED QUESTIONS
If A is an event of a random experiment such that `"P"("A") : "P"(bar"A")` = 17 : 15 and n(S) = 640 then find n(A)
At a fete, cards bearing numbers 1 to 1000, one number on one card are put in a box. Each player selects one card at random and that card is not replaced. If the selected card has a perfect square number greater than 500, the player wins a prize. What is the probability that the first player wins a prize?
Two unbiased dice are rolled once. Find the probability of getting a doublet (equal numbers on both dice)
Two unbiased dice are rolled once. Find the probability of getting the sum as 1
Three fair coins are tossed together. Find the probability of getting atmost two tails
A bag contains 5 red balls, 6 white balls, 7 green balls, 8 black balls. One ball is drawn at random from the bag. Find the probability that the ball drawn is black or red
The king and queen of diamonds, queen and jack of hearts, jack and king of spades are removed from a deck of 52 playing cards and then well shuffled. Now one card is drawn at random from the remaining cards. Determine the probability that the card is a queen of red card
The king and queen of diamonds, queen and jack of hearts, jack and king of spades are removed from a deck of 52 playing cards and then well shuffled. Now one card is drawn at random from the remaining cards. Determine the probability that the card is a king of black card
Two customers Priya and Amuthan are visiting a particular shop in the same week (Monday to Saturday). Each is equally likely to visit the shop on any one day as on another day. What is the probability that both will visit the shop on consecutive days?
The probability a red marble selected at random from a jar containing p red, q blue and r green marbles is
