There are \( m \) apples and \( n \) oranges to be placed in a line such that the two extreme fr...

Channel:
Subscribers:
447,000
Published on ● Video Link: https://www.youtube.com/watch?v=sQvCME6JWIs



Duration: 9:31
80 views
0


There are \( m \) apples and \( n \) oranges to be placed in a line such that the two extreme fruits being both oranges. Let \( P \) denotes the number of arrangements if the fruits of the same species are different and \( Q \) the corresponding figure when the fruits of the same species are alike, then the ratio \( P / Q \) has the value equal to:
(A) \( { }^{n} P_{2} \cdot{ }^{m} P_{m} \cdot(n-2) \) !
(B) \( { }^{m} P_{2} \cdot{ }^{n} P_{n} \cdot(n-2) ! \)
(C) \( { }^{n} P_{2} \cdot{ }^{n} P_{n} \cdot(m-2) \) !
(D) none
📲PW App Link - https://bit.ly/YTAI_PWAP
🌐PW Website - https://www.pw.live




Other Videos By PW Solutions


2022-11-28A shot is fired at \( 30^{\circ} \) with the vertical from a point on the ground with kinetic en...
2022-11-28pIf the \( x \)-coordinate of a point on the line joining the points \( \mathrm{P}(2,2,1) \) and...
2022-11-28The distance of the moon from the earth is about 60 times the radius of the earth. What will be ...
2022-11-28The number of integral values which can be taken by the expression, \( f(x)=\frac{x^{3}-1}{(x-1)...
2022-11-28A plane electromagnetic wave travelling along the \( X \)-direction has a wavelength of \( 3 \ma...
2022-11-28Which one of the following statements is correct with respect to the principle of safe blood tra...
2022-11-28The average kinetic energy (in joules of) molecules in \( 8.0 \mathrm{~g} \) of methane at \( 27...
2022-11-28निम्नलिखित फलनों का \( x \) के सापेक्ष अवकल गुणांक ज्ञात कीजिए- \[ \frac{a-b \cos x}{\sin x} \]
2022-11-28How much water should be filled in container 21 cm in height, so that it appears half filled whe...
2022-11-28A body is projected vertically upward with speed 40 m/s. The distance travelled by body in the l...
2022-11-28There are \( m \) apples and \( n \) oranges to be placed in a line such that the two extreme fr...
2022-11-28pA \( 10 \mathrm{~mm} \) long awl pin is placed vertically in front of a concave mirror. A \( 5 ...
2022-11-28Spot the wrong statement : The acceleration due to gravity \( \mathrm{g} \) decreases if - a. We...
2022-11-28pUse \( \pi=\frac{22}{7} \), unless stated otherwise./ppThree semicircles each of diameter \( 3 ...
2022-11-28A block of weight \( 100 \mathrm{~N} \) is lying on a rough horizontal surface. If coefficient o...
2022-11-28Two cells \( A \) and \( B \) of e.m.f. \( 2 \mathrm{~V} \) and \( 1.5 \mathrm{~V} \) respective...
2022-11-28A player throws a ball upwards with an initial speed of \( 30 \mathrm{~m} \mathrm{~s}^{-1} \). H...
2022-11-28A square \( A B C D \) of side \( 1 \mathrm{~mm} \) is kept at distance \( 15 \mathrm{~cm} \) in...
2022-11-28The potential energy of a particle varies with distance \( x \) from a fixed origin as \( U=\fra...
2022-11-28A rectangular lawn, \( 75 \mathrm{~m} \) by \( 60 \mathrm{~m} \), has two roads, each road \( 4 ...
2022-11-28Work done by force of kinetic friction on the system. (A) must be zero (B) must be positive (C) ...



Tags:
pw