Find the number of ways in which mixed double tennis game can be arranged amongst 9 married couples if no husband and wife play in the same game
1515
1500
1512
1550
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1
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It is required to seat 5 boys and 4 girls in a row so that the girls occupy the even places. How many such arrangements are possible?
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2
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If (n + 2)! = 2550 (n!); find ’n’
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3
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One red flower, three white flowers, and two blue flowers are arranged in a line such that
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4
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Ten participants are participating in a competition. In how many ways can the first three prizes be won?
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5
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Find the probability that a leap year selected at random will contain 53 Sundays
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6
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In how many ways a committee, consisting of 5 men and 6 women can be formed from 8 men and 10 women?
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7
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A, B, C, and D are four points, any three of which are noncollinear. Then, the number of ways to construct three lines each joining a pair of points so that the lines do not form a triangle is
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8
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In how many ways can a cricketer can score 200 runs with fours and sixes only?
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9
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12 person are seated at a round table. Number of ways of selecting 2 persons not adjacent to each other is
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10
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In how many ways can the letters of the word 'LEADER' be arranged?
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