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### JEE May Go Online In Future

Ref: Lower part of the article with heading JEE-2007 ON APRIL 8.

The online testing has to happen sooner or later. The article says it may happen in 2010. I think that if the paper is objective then online testing is a more efficient way to test. The adaptive* method of testing can only be implemented in online tests which is practically not possible in paper based tests. This has been proved by several international tests and I feel it should be done earlier.

*Adaptive test is a method in which difficulty level is adjusted by examinees' response.

### Sum of the coefficients in the expansion of $(x+y)^n$ ....

If the sum of the coefficients in the expansion of $(x+y)^n$ is 4096, then the greatest coefficient in the expansion is _ _ _ _ . Solution $C_0 + C_1 + C_2 + C_3 + ......................... + C_n =4096$ $\therefore 2^n = 4096 =2^{12}$ $\Rightarrow n = 12$ Greatest coefficient = ${}^{12}{C_6} = 924$