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Total amount reinvested by A = 84000 x (13/7) = 156000 Total amount invested by him at starting = (100/130) x 156000 = 120000 Required amount = (7/12) x 120000 = 70000
Roger Federer play 3 sets of a tennis match. The probability of his winning the three sets are 1/9,1/4,3/4 respectively. What is the probability that he...
12 Marbles and 12 balls are kept in a box. If 4 items are chosen at random, Find the probability that 2 is a marble and another 2 is ball
Three cards are drawn one after another with replacements from a standard deck of 52 cards. What is the probability of getting the first card a Queen, t...
A box contains 7 blue and 7 green balls. The probability of drawing three balls of the same colour 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...
Determine the number of ways to form a Kabaddi team consisting of six players from a group of 7 male players and 5 female players. Specifically, calcula...
A bag contains 5 red bottles, 6 yellowbottles and 8 greenbottles . 3bottles are drawn randomly. What is the probability that...
A bag contains cards which are numbered from 2 to 90. A card is drawn at random from the bag. Find the probability that the card number is a perfect squ...
