number of ways in which \( n \) ties can be selected from a rack displaying \( 3 n \) different ...

Channel:
PW Solutions
Subscribers:
443,000
Published on ● Video Link: https://www.youtube.com/watch?v=qVxlMeeNWFQ


Duration: 2:05
1 views
0

number of ways in which \( n \) ties can be selected from a rack displaying \( 3 n \) different ties,
(A) \( \frac{3 n !}{2 n !} \)
(B) \( 3 \times n ! \)
(C) (3n)! !
(D) \( \frac{3 n !}{n ! 2 n !} \)
ЁЯУ▓PW App Link - https://bit.ly/YTAI_PWAP
ЁЯМРPW Website - https://www.pw.live



Other Videos By PW Solutions


2022-11-17True/False Liquefaction of gas is a continuous process.
2022-11-17Two wavelength of light \( \lambda_{1} \) and \( \lambda_{2} \) are sent through Young's double-...
2022-11-17Three particles are fixed on an \( x \) axis. Particle 1 of charge \( q_{1} \) is at \( x=-a \),...
2022-11-17Fully constructive interference between two sinusoidal waves of the same frequency occurs only i...
2022-11-17When current changes from \( 13 \mathrm{~A} \) to \( 7 \mathrm{~A} \) in \( 0.5 \) s through a c...
2022-11-17\[ \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{NH}_{2}, \mathrm{C}_{6} \mathrm{H}_{5} \mathrm{NH}_{2},...
2022-11-17New approach to conservation establishment is : (A) Reserve forests (B) Sanctuaries. (C) Biosphe...
2022-11-17рдХреНрдпрд╛ рд╣реЛрдЧрд╛ рдЕрдЧрд░ рдПрдХ рдкреНрд▓рд╛рдЬреНрдорд┐рдб рд╡реЗрдХреНрдЯрд░ рдХреЗ DNA рдХреЛ ECORI рдПрдиреНрдЬрд╛рдЗрдо рджреНрд╡рд╛рд░рд╛ рдПрдХ рд╕реНрдерд╛рди рдкрд░ рдХрд╛рдЯ рджрд┐рдпрд╛ рдЬрд╛рдпреЗ?
2022-11-17The centres for the control of voluntary activities are present in the (A) thalamus and cerebral...
2022-11-17A person sees his virtual image by holding a mirror very close to the face. When he moves the mi...
2022-11-17number of ways in which \( n \) ties can be selected from a rack displaying \( 3 n \) different ...
2022-11-17The length of the perpendicular drawn from the point \( P(a, b, c) \) from \( z \)-axis is (A) \...
2022-11-17Two coherent sources of equal intensity produce maximum intensity of 100 units at a point. If th...
2022-11-17Optical fibres are based on the phenomenon of (A) reflection (B) refraction (C) dispersion (D) t...
2022-11-17Calculate the quantity of electricity that would be required to reduce \( 12.3 \mathrm{~g} \) of...
2022-11-17рджрд┐рдП рдЧрдП рддрддреНрд╡ рдХреА рдХрдореА рдХрд╛ рдПрдХ рд▓рдХреНрд╖рдг рд▓рд┐рдЦрд┐рдПрдлреЙрд╕реНрдлреЛрд░рд╕
2022-11-17\( { }^{404} C_{4}-{ }^{4} C_{1}{ }^{303} C_{4}+{ }^{4} C_{2}{ }^{202} C_{4}-{ }^{4} C_{3}{ }^{1...
2022-11-17\( \mathrm{Be} \) рд╡рд░реНрдЧ-2 рдХреЗ рдЕрдиреНрдп рд╕рджрд╕реНрдпреЛрдВ рд╕реЗ рдХреБрдЫ рд▓рдХреНрд╖рдгреЛрдВ рдореЗрдВ рднрд┐рдиреНрди рд╣реЛрддрд╛ рд╣реИред рдЗрд╕рдХреЗ рд╕рдорд░реНрдерди рдореЗрдВ рдЙрджрд╛рд╣рд░...
2022-11-17In a \( \triangle A B C \), if \( b=20, c=21 \) and \( \sin A=\frac{3}{5} \), then \( a= \)
2022-11-17The kinetic energy of a particle moving along a circle of radius \( R \) depends on the distance...
2022-11-17\( \int(1+2 \tan x(\tan x+\sec x)]^{1 / 2} d x \) is equal (A) \( \log \sec x(\sec x-\tan x)+C \...