@emanresu said:@noleI did it orally, heres the pic i drew in my mind, dunno f the ans is rite, plz crosscheck with the question giver
yaar thoda explain kar i am not getting it
@Shrutim90 said:If we rearrange the letters of the word RAINBOW, How many words will be there in which the vowels are never together?According to me the solution should be : 7! - 5!*3!But the solution given in the book (Quantum CAT) is entirely different. Please let me know how to solve this question.
5p3*4! ?
@nole said:@emanresu from the figure i understood quadrilateral getting divided into 30 each.after that what did u do ? BED traingle me ki sides 6x,6x kaise ai ? same for traingle AEF ?
@joyjitpal said:how 6x and 5thora explain kar dena bhai
As areas of 2 triangles you know and they are between the same parallel lines so their height is same but areas in the ratio 36:30 i.e 6:5. hence their bases must be in the ratio 6:5 as area=0.5*base*height
Question :
OA in 5 mins.
Question :
Question :
Question :
If we rearrange the letters of the word RAINBOW, How many words will be there in which A is always before I and I is always before O?
.. Out of touch @Shrutim90 said:If we rearrange the letters of the word RAINBOW, How many words will be there in which A is always before I and I is always before O?
7!/3!
The OAs are :
25
8
243
23/27...
@saurav205 said:Question 13:
Out of 36 cases, 27 would have at least one odd number..
The only positive scenarios are for 4,5 and 3,6.. 2 cases apiece.
Hence, 23 cases out of 27 are favorable?
Ans: (1)
PS: Here I am, finally getting a prob qstn correct and find the OA posted 5 min back :banghead:
@bluechameleon18 said:Out of 36 cases, 27 would have at least one odd number.. The only positive scenarios are for 4,5 and 3,6.. 2 cases apiece.Hence, 23 cases out of 27 are favorable?Ans: (1) PS: Here I am, finally getting a prob qstn correct and find the OA posted 5 min back
No one was replying....Probably everyone went for lunch or something....So I posted the OAs...
@mailtoankit said:8 ?(2n - 4)*90 = n/2(2*187.5 + (n - 1)(-15))n = 8 satisfies
I have put up the OA for all the questions...
20^2004 + 16^2004 - 3^2004 -1 is divisible by
a)317
b)323
c)253
d)91
a)317
b)323
c)253
d)91