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Distance = Difference in time x (S1 x S2)/(S1 – S2) D = [15 – 9]/60 x {(45 x 36)/[45 – 36]} => (6/60) x (45 x 36)/9 => 18 km Time, T = D/S (take any one of the speed) => 18/36 = 18/36 x 60 = 30 minutes Then, correct time is 30 – 15 = 15 minutes
A coin is tossed successively three times. Find the probability of getting exactly one tail or two tails?
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A bag contains 14 black and 16 white balls. One ball is drawn at random. What is the probability that the ball drawn is white?
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What is the probability that four A’s come consecutively in the word ‘AMALGAMATION’
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If a coin is tossed 10 times then what is the probability of getting three heads?