Official Quant thread for CAT 2013

MBA CAT 2022
3301

did halfway and den left it as it is trigo :splat:

answer for odr one is 143?? :lookaround:
3302
@maddy2807 m stuck in this spiral 😞 help
3303
@pankaj1988 said:
A??
3304
@pankaj1988 said:
a) 2003*1002
3305
@pankaj1988 said:
1^2 - 2^2 + 3^2 - 4^2 + ..+ 2001^2 - 2002^2 + 2003^2

(1+2)(1-2) + (3+4)(3-4) + (5+6)(5-6).......+(2001+2002)(2001-2002) + 2003^2

solving
2003^2 -(1001.2003) = 2007006
3306
@pankaj1988 said:
OA...1Q.6CHK THE ATTACHMENT
Ans 143?
3307
@pankaj1988 said:
option A?
3308
@PSub said:
@maddy2807 m stuck in this spiral help
do it in simple way
perimeter of semi circle and add upto 13 terms
22/7(0.5+1+1.5+... + 13 terms)

22/7(13/2[1+6])=143
3309
@pankaj1988 said:
2007006 ? (galat lika galti se ) A as well for me

Approach -

sum of all squares upto 2003 - 2x4xsum of all squares upto 1001

3310
@pankaj1988 said:
2007006
3311
@gs4890 said:
20074006 ?
Bhai its typo I think 2007006..fm where does that addition 4 came in b/w
3312
@gs4890 said:
20074006 ?Approach -sum of all squares upto 2003 - 2x4xsum of all squares upto 1001
par yeah length rahega.... @soumitrabengeri 's method is better
3313
@pankaj1988 said:
Bhai its typo I think 2007006..fm where does that addition 4 came in b/w
typo bhai
3314
@pankaj1988 said:
OA-option A

Q.9 ATTACHMENT Plz.

3315
@maddy2807 said:
par yeah length rahega.... @soumitrabengeri 's method is better
yaar c'mon terms leke it took me hardly any time ..2003x1002 bacha last mein :)
thanks though :drink:
3316
@pankaj1988 said:
A. 200706 ?
3317
@maddy2807 _/\_thanks :)
3318
@pankaj1988 said:
OA-option AQ.9 ATTACHMENT Plz.
None
10
3319
@pankaj1988 said:
OA-option AQ.9 ATTACHMENT Plz.
10?
3320
@pankaj1988 said:
OA-option AQ.9 ATTACHMENT Plz.
B) 4?