Maths-

#### In how many ways can six different rings be wear in four fingers?

Maths-General

^{6}P_{4}
- 6
^{4}
- 4
^{6}
^{6}C_{4}

^{6}P_{4}^{4}^{6}^{6}C_{4}#### Answer:The correct answer is: 4^{6}

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#### How many signals can be given by means of 10 different flags when at a time 4 flags are used, one above the other?

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#### If ^{(m+n) }P_{2} = 56 and ^{m–n}P_{2} = 12 then (m, n) equals-

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#### If one root of the equation is reciprocal of the one of the roots of equation then

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