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5 boys & 4 girls sit in a straight line....

5 boys & 4 girls sit in a straight line. Find the number of ways in which they can be seated if 2 girls aretogether & the other 2 are also together but separate from the first 2.:

A

5400

B

10800

C

21600

D

43200

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • The number of ways in which 5 boys and 5 girls can sit in a ring are---

    A
    10!
    B
    9!
    C
    5!
    D
    6!
  • The number of ways in which 5 boys and 5 girls can be seated for a photograph so that no two girls sit next to each other, is

    A
    `6! cdot 5!`
    B
    `(5!)^2`
    C
    `(10!)/((5!))`
    D
    `(10!)/((5!)^2)`
  • In a group of 8 girls, two girls are sisters. The number of ways in which the girls can sit in a row so that two sisters are not sitting together is:

    A
    4820
    B
    1410
    C
    2830
    D
    30240
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