# Quiz Discussion

If 18C18Cr+2 ; find rC5.

Course Name: Quantitative Aptitude

• 1]

56

• 2]

63

• 3]

49

• 4]

42

##### Solution
No Solution Present Yet

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# Quiz
1
Discuss

If P(A)=2/5​, P(B)=3/10​ and P(A ∩ B) =51​, then P(A' | B'). P(B' | A') is equal to

• 1]

5/6

• 2]

5/7

• 3]

25/42

• 4]

1

##### Solution
2
Discuss

How many four-digit numbers, each divisible by 4 can be formed using the digits 5, 6, 7, 8, 9, repetition of digits being allowed in any number?

• 1]

75

• 2]

100

• 3]

125

• 4]

150

##### Solution
3
Discuss

A biased coin in tossed thrice. What is the probability that heads turns out at least twice considering that the probability of a head is 60%?

• 1]

0.648

• 2]

0.234

• 3]

0.348

• 4]

.839

##### Solution
4
Discuss

Ten participants are participating in a competition. In how many ways can the first three prizes be won?

• 1]

920

• 2]

680

• 3]

720

• 4]

820

##### Solution
5
Discuss

In how many different ways can the letters of the word 'CORPORATION' be arranged so that the vowels always come together?

• 1]

50400

• 2]

2430

• 3]

6540

• 4]

12800

##### Solution
6
Discuss

In how many ways can the letters of the word 'LEADER' be arranged?

• 1]

360

• 2]

720

• 3]

120

• 4]

None Of These

##### Solution
7
Discuss

There are 20 people among whom two are sisters. Find the number of ways in which we can arrange them around a circle so that there is exactly one person between the two sisters.

• 1]

2! x 19!

• 2]

18!

• 3]

18! x 2!

• 4]

19!

##### Solution
8
Discuss

In how many ways can a cricketer can score 200 runs with fours and sixes only?

• 1]

13

• 2]

19

• 3]

16

• 4]

17

##### Solution
9
Discuss

From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least three men are in the committee. In how many ways can it be done?

• 1]

624

• 2]

702

• 3]

756

• 4]

812

##### Solution
10
Discuss

Find the probability that a leap year selected at random will contain 53 Sundays

• 1]

2/7

• 2]

3/7

• 3]

2/3

• 4]

5/6

# Quiz