Quiz Discussion

A speaks truth in 75% cases and B in 80% of the cases. In what percentage of the cases are they likely to contradict each other, narrating the same incident?

Course Name: Quantitative Aptitude

  • 1]

    5%

  • 2]

    15%

  • 3]

    35%

  • 4]

    45%

Solution
No Solution Present Yet

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# Quiz
1
Discuss

If A, B and C are mutually exclusive and exhaustive events of a random experiment such that P(B)=3/2​P(A) and P(C)=1/2​P(B), then P(A∪C)=

  • 1]

    3/13

  • 2]

    6/13

  • 3]

    7/13

  • 4]

    10/13

Solution
2
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
3
Discuss

The value of  75P2

  • 1]

    5450

  • 2]

    5555

  • 3]

    5550

  • 4]

    5656

Solution
4
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
5
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
6
Discuss

How many 4-letter words with or without meaning, can be formed out of the letters of the word, 'LOGARITHMS', if repetition of letters is not allowed?

  • 1]

    40

  • 2]

    400

  • 3]

    5040

  • 4]

    2520

Solution
7
Discuss

A, B, C, D and E sit on five chairs all of which are facing north. C will sit only on the leftmost chair and B will not sit anywhere to the left of A. In how many ways they can be seated?

  • 1]

    10

  • 2]

    18

  • 3]

    36

  • 4]

    12

Solution
8
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
9
Discuss

A, B, C, and D are four points, any three of which are non-collinear. Then, the number of ways to construct three lines each joining a pair of points so that the lines do not form a triangle is

  • 1]

    7

  • 2]

    8

  • 3]

    9

  • 4]

    24

Solution
10
Discuss

A box contains two white balls, three black balls and four red balls. Balls of the same colour are distinct. The number of ways in which three balls can be drawn from the box if atleast one black ball is to be included in the draw, is

  • 1]

    32

  • 2]

    64

  • 3]

    128

  • 4]

    None Of These

Solution
# Quiz