CoCobes Permutation and Combination Quiz-1

Question 1

Time: 00:00:00
How many 5 digit numbers can be formed from the given numbers 0, 4, 5, 6, 2?

500

500

2500

2500

300

300

600

600

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Question 2

Time: 00:00:00
What are the possible number of ways in which a team can be formed which has 4 boys and 2 girls from a group of 10 boys and 5 girls?

2100

2100

3200

3200

1000

1000

1500

1500

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Question 3

Time: 00:00:00
A security system has a lock with 5 rings. Each of these rings is marked with 5 different letters. Calculate the total number of failed attempts made to open the lock.

1300

1300

2154

2154

3124

3124

3125

3125

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Question 4

Time: 00:00:00
A fruitseller has 10 mangoes which wants to place in 5 boxes. Each box can hold more than 10 mangoes. Find out the number of ways in which the fruitseller can arrange 10 mangoes in 5 boxes.

510

510

25

25

105

105

None of the above

None of the above

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Question 5

Time: 00:00:00
Calculate the number of arrangement of the letters of the word “STRAIGHT” such that vowels must always be placed at odd places.

6570

6570

5004

5004

8640

8640

None of the above

None of the above

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Question 6

Time: 00:00:00
Out of 7 consonants and four vowels ,how many words of three consonants and 2 vowels can be formed?

21000

21000

10500

10500

25200

25200

21400

21400

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Question 7

Time: 00:00:00
3 books of mathematics and 5 books of physics are placed on a shelf so that the books on the same subject always remain together .The possible arrangements are .

1440

1440

1956

1956

2420

2420

None of these

None of these

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Question 8

Time: 00:00:00
The number of triangles that can be formed by choosing the vertices from a set of 12 points, seven of which lie on the same straight line is

185

185

105

105

132

132

167

167

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["0","40","60","80","100"]
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