4. In a tournament here are n teams T1, T2……Tn with n>5. Each team consists of k players, k>3. The following pairs of team have one player in common T1 and T2 and T3….., Tn-1 and Tn and Tn2nd T1- No other pair of teams has any player in common. How many players are participating in the tournament, considering all the n team together?
K (n-1)
N (k-20)
K (n-2)
K (n-2)
D.
K (n-2)
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5.A man has 9 friends: 4 boys and 5 girls, In how many ways can he invite them, if there have to be exactly 3 girls in the invitees?
320
160
80
80
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6.A speaks truth in 75% cases and B in 80% cases, In what percentage of cases are the likely to contradict eact other, narrating same incident?
5%
15%
35%
35%
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7.A die is rolled twice. what is the probability that the sum of the number on the two of the faces is 5?
3/13
4/13
6/13
6/13
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8.The simplified value of [(0.111)3 + (0.222)3 – (0.333)3
0.999
0.111
0
0
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9.Along a road lie an odd number of stones placed at intervals of 10 m. These stones have to be assembled around the middle stone. A person can carry only one stone at a time. A man carried out the job starting with the store in the middle, carrying stones in succession, there by covering a distance of 4.8 km. Then, the number of stone is:
35
15
31
31
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10.A group of 360 children is arranged in rows for a group photograph session. Each row contains three fewer children that the row in front of it. What number of rows is not possible?
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