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[QUOTE=Mehria;236228][CENTER]
There is a bus with 7 girls.
Each girl has 7 bags.
In each bag, there are 7 big cats
Each big cat has 7 little cats.
Question: How many legs are present in bus?
__________________[LEFT][/LEFT][/CENTER][/QUOTE]
plz ans
It was an aptitude test book.
thnx

70 legs

[QUOTE=Mehria;236274]plz ans
It was an aptitude test book.
thnx[/QUOTE]

[QUOTE=farasat_ali;236297]70 legs[/QUOTE]

I disagree with this answer.


Let's analyze the question.

[Quote] There is a bus with 7 girls.
Each girl has 7 bags.
In each bag, there are 7 big cats
Each big cat has 7 little cats.
Question: How many legs are present in bus? [/quote]



7 Girls = 14 legs.
1 Girl has 7 bags. In total there are [B]49[/B] bags.

Lets calculate legs in just one bag first.

1 bag has 7 big cats. i.e [B](7 Cats = 28 legs)[/B] [Cat has 4 legs :p]

Again 1 big cat has 7 small cats i.e 1 big cat = 7 Small cats = [B](7*4=28 legs)[/B].

1 Big cat equals to 28 legs (except her own). There are 7 big cats in one bag i.e [B](28*7= 196 legs in one bag)[/B]

Now there are 7 bags with each girl, i.e [B](196*7=1372 legs)[/B]

And, finally there are 7 girls in the bus, i.e [B](1372*7=9604 legs in all the 49 bags)[/B]

Add the legs of girls themselves, i.e [B](7*2=14)[/B].

Answer should be 9604+14=[B]9620[/B] :blink


If there's any error, please correct it.

@ redmax
 

[QUOTE] [/QUOTE]

sorry brother its wrong i checked your solution and its mind boggling i couldnt find the mistake may be you did a tricky mistake . 9620 is wrong . :nono

but i got a simpler solution to the problem.

see ,


no. of big cats = 7^3 = ( 7*7*7) = 343 .
no. of little cats = 7^4 = ( 7*7*7*7) = 2401 .
total no. of cats = 343 + 2401 = 2774 . ( either big or small cat is a cat)

7 girls have 7*2 =14 human legs
2774 cats have 2774 * 4 = 10976 legs .

adding all legs .

14 + 10976 = [SIZE="4"]10990 legs[/SIZE] in total.

total bags.............................=[COLOR="Black"][B]49[/B][/COLOR]
cats in one bag......................=[COLOR="Blue"]49 small+ 7 big[/COLOR]=[COLOR="Black"][B]56[/B][/COLOR]
total cats.............................=[COLOR="Blue"]49*56[/COLOR]= [COLOR="Black"][B]2744[/B][/COLOR]
legs of one cat......................=[COLOR="Black"][B]4[/B][/COLOR]
total legs of all the cats..........=[COLOR="Blue"]2744*4[/COLOR]=[COLOR="Black"][B]10976[/B][/COLOR]
total girls..............................=[COLOR="Black"][B]7[/COLOR][/B]
legs of girls............................=[COLOR="Blue"]7*2[/COLOR]=[COLOR="Black"][B]14[/B][/COLOR]
total number 0f legs................=[COLOR="Blue"]10976+14[/COLOR]=10990
Answer.................................=[COLOR="Indigo"][B]10990 legs[/B][/COLOR]


[QUOTE=bear;236390]
but i got a simpler solution to the problem.
see ,

no. of big cats = 7^3 = ( 7*7*7) = 343 .
no. of little cats = 7^4 = ( 7*7*7*7) = 2401 .
total no. of cats = 343 + 2401 = 2774 . ( either big or small cat is a cat)

[/QUOTE]

brother you are mistaken too,

[COLOR="Blue"][SIZE="2"][B][FONT="Georgia"]total cats are 56*49=2744[/FONT][/B][/SIZE][/COLOR]
[COLOR="Purple"][B]or
as yours~ 343+2401=2744[/B][/COLOR]

Anyhow your answer in total is correct.:shy:shy

printing mistake
i was right with with the calculator .
anyways thanks V much for notifying

[QUOTE=bear;236390]sorry brother its wrong i checked your solution and its mind boggling i couldnt find the mistake may be you did a tricky mistake . 9620 is wrong . :nono

but i got a simpler solution to the problem.

see ,


no. of big cats = 7^3 = ( 7*7*7) = 343 .
no. of little cats = 7^4 = ( 7*7*7*7) = 2401 .
total no. of cats = 343 + 2401 = 2774 . ( either big or small cat is a cat)

7 girls have 7*2 =14 human legs
2774 cats have 2774 * 4 = 10976 legs .

adding all legs .

14 + 10976 = [SIZE="4"]10990 legs[/SIZE] in total.[/QUOTE]
ur ans is right bro

[B][SIZE="3"]زمین پر سب سے پہلے قلم کا استعمال کس نے کیا تھا[/SIZE][/B]
[B][SIZE="3"]who was the first man,who used pen?[/SIZE][/B]

Hazrat idrees a.s....I can't remember any authentic source but in various digests,articles etc etc i have found it a thousand time.