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Question Number 76740 by benjo 1/2 santuyy last updated on 30/Dec/19

$$15\mathrm{persons},\mathrm{among}\mathrm{whom}\mathrm{are}A\mathrm{and}B,$$$$\mathrm{sit}\mathrm{down}\mathrm{at}\mathrm{random}\mathrm{at}\mathrm{a}\mathrm{round}\mathrm{table}.$$$$\mathrm{The}\mathrm{probability}\mathrm{that}\mathrm{there}\mathrm{are}4\mathrm{persons}$$$$\mathrm{between}A\mathrm{and}B\mathrm{is}$$

Commented by mr W last updated on 30/Dec/19

$$p=\frac{C_4^{13}\times 4!\times 2\times 9!}{14!}=\frac{1}{7}$$

Commented by benjo 1/2 santuyy last updated on 30/Dec/19

$$thankyousir$$

Commented by mr W last updated on 30/Dec/19

$$istheanswercorrect?$$

Commented by benjo 1/2 santuyy last updated on 30/Dec/19

$$yessir.youranscorrect$$

Commented by mr W last updated on 30/Dec/19

$$thankssir!$$

Commented by benjo 1/2 santuyy last updated on 30/Dec/19

$$sircanthisapplicationbeinstalled$$$$onalaptop?$$

Commented by mr W last updated on 30/Dec/19

$$i{don}^{\prime }tthinkso.$$

Commented by Kunal12588 last updated on 30/Dec/19

$$youmayusebluestack$$

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