Quiz Discussion

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.

Course Name: Quantitative Aptitude

• 1]

2! x 19!

• 2]

18!

• 3]

18! x 2!

• 4]

19!

Solution
No Solution Present Yet

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# Quiz
1
Discuss

A five-letter word is to be formed from a group of 5 vowels and 4 consonants, using at least one vowel and at least one consonant. In how many ways the word having a greater number of consonants than vowels can be formed?

• 1]

40

• 2]

42

• 3]

45

• 4]

52

Solution
2
Discuss

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

• 1]

1515

• 2]

1500

• 3]

1512

• 4]

1550

Solution
3
Discuss

If ,​, are probabilities of three mutually exclusive events, then

• 1]

• 2]

• 3]

• 4]

None Of These

Solution

4
Discuss

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

• 1]

185

• 2]

175

• 3]

115

• 4]

105

Solution
5
Discuss

What is the probability of getting at least one six in a single throw of three unbiased dice?s

• 1]

91/216

• 2]

1/216

• 3]

200/216

• 4]

17/216

Solution
6
Discuss

If C(n, 7) = C(n, 5), find n

• 1]

12

• 2]

15

• 3]

18

• 4]

-1

Solution
7
Discuss

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

• 1]

120

• 2]

720

• 3]

4320

• 4]

2160

Solution
8
Discuss

Two dice are thrown simultaneously. What is the probability of getting two numbers whose product is even?

• 1]

1/2

• 2]

3/4

• 3]

3/8

• 4]

5/16

Solution
9
Discuss

If (n + 2)! = 2550 (n!); find ’n’

• 1]

49

• 2]

35

• 3]

38

• 4]

43

Solution
10
Discuss

The number of circles that can be drawn out of 10 points of which 7 are collinear is

• 1]

130

• 2]

85

• 3]

45

• 4]

72

# Quiz