Permutations and Combinations Test

Result

Permutations and Combinations Test - 25

Score
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Rank
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Weekly Quiz Competition

Question 1
4 / -1

The number of 4 digit even numbers that can be formed using 0,1,2,3,4,5,6 without repetition is

A
120

B
300

C
420

D
20

Solution
Question 2
4 / -1

How many numbers less than 1000 can be made from the digits 1,2,3,4,5,6 (repetition is not allowed)

A
156

B
160

C
150

D
None of these
Question 3
4 / -1

How many words can be formed from the letters of the word COURTESY , whose first letter is C and the last letter is Y

A
6!

B
8!

C
2(6)!

D
2(7)!
Question 4
4 / -1

How many words can be made from the letters of the word DELHI, if L comes in the middle in every word

A
12

B
24

C
60

D
6
Question 5
4 / -1

The number of ways in which 9 persons can be divided into three equal groups is

A
1680

B
840

C
560

D
280

Solution
Question 6
4 / -1

In how many ways 3 letters can be posted in 4 letter-boxes ,if all the letters are not posted in the same letter -box

A
63

B
60

C
77

D
81
Question 7
4 / -1

How many numbers lying between 99 and 1000 be made from the digits 2,3,7,0,8,6 when the digits occur only once in each number

A
100

B
90

C
120

D
80
Question 8
4 / -1

All possible four digit numbers are formed using the digits 0,1,2,3, so that no number has repeated digits. The number of even numbers among them is

A
9

B
18

C
10

D
None of these
Question 9
4 / -1

The number of 7 digit numbers which can be formed using the digits 1,2,3,2,3,3,4 is

A
420

B
840

C
2520

D
5040

Solution
Question 10
4 / -1

How many numbers greater than hundred and divisible by 5 can be made from the digits 3,4,5,6, if no digit is repeated

A
6

B
12

C
24

D
30

Solution