7/4/2008 8:28:59 PM

A nice one! But I guess this is not from Ramanujam's book.. it's a simple math trick blinding the user in seeing the truth..

You could be correct till this step: 9+(25/4)-15 = 4+(25/4)-10

However, from the above equation, L.H.S need not be a=3 and b=5/2, it could also be a=-3 and b=-5/2.

If you take these values and proceed,

(-3 -(-5/2)) = (2 - 5/2)
-3 + 5/2 = 2 - 5/2
(5/2) + (5/2) = 2 + 3
10/2 = 5
5 = 5

Does this hold good?? You see.. math can never be wrong.. if it could be, the world won't be like as it is.. math is the piller of our life!!

Swetha

7/7/2008 11:07:23 AM

hey you got the flaww......

xxx

7/8/2008 11:05:53 AM

Congratz Swetha... I too guess this is not from Ramanujam's book. I could see another flaw there.

(3-5/2)(3-5/2) = (2-5/2)(2-5/2)
Taking positive square root on both sides:
3 - 5/2 = 2 - 5/2

In above part, RHS they are taking negative square root (2 - 5/2) instead of (5/2 - 2). If they take it correctly, it will hold good

3 - 5/2 = 5/2 - 2
0.5 = 0.5

Arun ASP

7/8/2008 5:53:57 PM

great investigation...

xxx