MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping
Menu
Anmol Nanda Grade: 11
        

the solution of a problem is this:


Total number of words   =   5!   =    120!


 If all the vowels come together, then we have: (O.E.A.), M,G


 These can be arranged in    3!    ways.


 But (O,E.A.) can be arranged themselves in   3! ways.


 => Number of ways, when vowels come-together  =    3!  x    3!  


= 36 ways


=> Number of ways, when vowels being never-together


= 120-36        =  84 ways.


but why not,


like this:-


X  E X   A 


over here the position of X can be filled by 2! ways and OEA in 3! ways,what more selections am i missing?


becoz total ways according to my analysis is 12 but according to this process is 84.




 

6 years ago

Answers : (1)

jishnu prakash
15 Points
										

Consider the cases in which two vowels are at one place and the third vowel away from them for example


o e m g a


a g m o e


the solution includes these too.


 

6 years ago
Think You Can Provide A Better Answer ?
Answer & Earn Cool Goodies
  • Complete JEE Main/Advanced Course and Test Series
  • OFFERED PRICE: Rs. 15,900
  • View Details
Get extra Rs. 3,180 off
USE CODE: CART20
Get extra Rs. 466 off
USE CODE: CART20

Ask Experts

Have any Question? Ask Experts

Post Question

 
 
Answer ‘n’ Earn
Attractive Gift
Vouchers
To Win!!! Click Here for details