ProbabilityHard
Question
From a lottery of 30 tickets, marked 1, 2, 3,...., 30, four tickets are drawn. The chance that those marked 1 and 2 are among them is-
Options
A.413/145
B.2 / 145
C.1 / 45
D.4 / 145
More Probability Questions
Odds 8 to 5 against a person who is 40 years old living till he is 70 and 4 to 3 against another person now 50 till he w...Lot A consists of 3G and 2D articles. Lot B consists of 4G and 1D article. A new lot C is formed by taking 3 articles fr...Let E and F be two independent events. The probability that both E and F happens, is 1/12 and the probability that neith...The probability of getting head and tail alternatively in three throws of a coin (or in a throw of three coins) is-...In tossing a coin getting a head or tail is -...