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
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A coin is tossed 5 times. What is the probability that head appears an odd number of times?

  • 1]

    1/2

  • 2]

    2/3

  • 3]

    1/3

  • 4]

    1

Solution
2
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
3
Discuss

A number lock on a suitcase has 3 wheels each labeled with 10 digits from 0 to 9. If the opening of the lock is a particular sequence of three digits with no repeats, how many such sequences will be possible?

  • 1]

    720

  • 2]

    760

  • 3]

    780

  • 4]

    680

Solution
4
Discuss

How many rectangles can be formed out of a chess board ?

  • 1]

    1740

  • 2]

    1230

  • 3]

    1296

  • 4]

    204

Solution
5
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

Solution
6
Discuss

How many words, with or without meaning, can be formed using all letters of the word EQUATION using each letter exactly once?

  • 1]

    38,320

  • 2]

    39,320

  • 3]

    38,400

  • 4]

    40,320

Solution
7
Discuss

In how many ways can a group of 5 men and 2 women be made out of a total of 7 men and 3 women?

  • 1]

    63

  • 2]

    90

  • 3]

    126

  • 4]

    45

Solution
8
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
9
Discuss

How many natural numbers can be made with digits 0, 7, 8 which are greater than 0 and less than a million?

  • 1]

    496

  • 2]

    728

  • 3]

    486

  • 4]

    1084

Solution
10
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
# Quiz