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Trichoderma is a good bio-control agent as well as a fertility promoter.
In a box there are 3 pink, 5 black, and 9 yellow flowers. One flower is picked up randomly. What is the probability that it is neither pink nor black? <...
A coin is tossed successively three times. Find the probability of getting exactly one tail or two tails?
A bag contains 3 Green and 9 Red balls. One ball is drawn at random. What is the probability that the ball drawn is Red?
In a class, there are 16 boys and 24 girls. One of them is called out by an enroll number. What is the probability that the one called is a girl?
The probability that Leah will be accepted into program P is 60% and into program Q is 40%. Leah prefers program 'P' first, then 'Q', and finally 'R'. A...
One five letter word is to be formed taking all letters – U, Z, M, O and Q. What is the probability that this is word formed will contain all vowe...
Two cards are drawn from a pack of 52 cards. The probability that 1 is Ace and 1 is Queen is?
A box contains only three colors of balls- red, green and blue. What is the minimum number of balls that should be picked from the box to ensure that at...
A dice is rolled six times. What is the probability that a six appears on the sixth roll for the second time in 6 rolls?
There are is chest containing only diamond and emeralds in the ratio 2:5. When 2 of them are picked at random form the chest, the probability that both ...
