Two dice are rolled randomly. Find the probability to get sum is 10. 2/5 14 2/9 1/12 5/8 Option D Required = (6 , 4 ) , (4 , 6) , ( 5, 5) = 3total = 6 * 6 = 36 probability = 3/36 = 1/12 Two dices are rolled out together, then what is the probability of…
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Two dice are rolled randomly. Find the probability to get sum is 10. 2/5 14 2/9 1/12 5/8 Option D Required = (6 , 4 ) , (4 , 6) , ( 5, 5) = 3total = 6 * 6 = 36 probability = 3/36 = 1/12 Two dices are rolled out together, then what is the probability of…
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If coins are tossed, then find the probability of getting at least 3 tails on the face. 8/9 4 1/4 1/2 2/5 Option D Required = (5C3) + (5C4) + (5C5) = 10 + 5 + 1 = 16total = 2^5 = 32probability = 16/32 = 1/2 A bag contains 4 red balls, 2 black balls and 5 yellow…
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A bag contains 8 green balls and 12 blue balls. If a ball is drawn randomly, then find the probability of getting either green ball or blue ball. 2 3 2/5 2/3 1 Option E required = (8C1) + (12C1) = 20total = (20C1) = 20probability = 20/20 = 1 If two cards are drawn randomly from a pack…
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Two dices are rolled down simultaneously, then find the probability of getting sum of results on both dices more than 8. 2/15 4/19 1/8 5/18 3/20 Option D possible cases=(3,6), (4,5), (4,6), (5,4), (5,5)required probability=10/36=5/18 A bag contains 6 blue balls and 8 pink balls. If a ball is drawn randomly from it, then find the probability of getting…
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In how many different ways the letter of ‘MORBID’ can be arranged ? 780 720 620 680 none of these Option B required no. of ways=6!=720 When three coins are tossed simultaneously, then find the probability of getting at least one head. 7/8 1/8 3/10 6/15 5/8 Option A required no. of outcome= 3C1+ 3C2+ 3C3 =3+3+1=7total no. of…
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In a freeze,there are 6 apples,3 mango , 5 grapes and 2 guava.If three items are picked at random,what is the probablitiy that two are grapes and one is an mango? 2/27 3/56 3/17 4/29 None of these Option B Total items=6+3+5+2=16P=(5C2 * 3C1) / 16C3 Bag P contain 7 ruby balls,”X grey balls and 5 yellow balls.The probability…
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A bag contains 3 ruby balls and 8 blue balls and another bag contains 5 ruby balls and 7 blue balls.One ball is drawn at random from either of the bag.Find the probability that the ball is ruby? 94/265 96/254 98/252 91/264 None of these Option D (1/2) * (3/11) + (1/2) * (5/12) In a race of 12…
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A carton contains 21 balls numbered 1 to 21. A ball is drawn and then another ball is drawn without replacement. What is the probability that both balls are even numbered? 3/14 2/7 4/14 5/16 None of these Option A Required probability = 10/21 * 9/20 There are 3 grey, 4 olive and 5 white color balls in a…
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There are 5 boys and 3 girls. A group of 3 members is to be made. Find the probability that either there are 2 boys and 1 girl or 2 girls and 1 boy? 45/56 44/54 49/64 52/58 None of these Option A 2 boy and 1 girl, prob. = 5C2*3C1/8C32 girl and 1 boy, prob. = 5C1*3C2/8C3Add both the…
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