# Recent questions tagged ugc-net

A bag contains 1 rupee, 50 paise and 25 paise coins. The value of 1 rupee, 50 paise and 25 paise coins are in the ratio of 5 : 2 : 3 respectively. If total number of coins is 420, then what will be the total value of all coins? Rs. 160 Rs. 180 Rs. 220 Rs. 200
Consider a code with only four valid code words: 0000000000, 0000011111, 1111100000, and 1111111111. This code has distance 5. If the code word arrived is 0000000111 then the original code word must be ____________ 1.0000011111 2.0000000000 3.1111100000 4.11111
Given below are different properties of 3D projections from A-D. Identify the correct order on the basis of property true of (i) a perspective projection only (ii) an orthographic projection only (iii) both orthographic and projective transformations and (iv) neither orthographic nor projective transformation, ... the correct answer from the options given below: D,C,B,A B,C,D,A D,C,A,B C,D,B,A
Can anyone please guide me for the preparation of UGC NET . I had just completed my MCA and pursuing M.Tech (IT) .
Consider the following sequence of two transactions on a bank account(A) with initial balance 20,000 that transfers 5,000 to another account (B) and then apply 10% interest. (i) T1 start (ii) T1 A old=20000 new 15,000 (iii) T1 B old=12000 new=17000 (iv) T1 commit ... said, undoing (vi) will set A to 16500, is this correct? because if A is set to 16500 then database will be in an incosistent state.
Let $a^{2c} \enspace mod \enspace n = (a^c)^2\enspace mod\enspace n$ and $a^{2c+1} \enspace mod \enspace n = a(a^c)^2\enspace mod\enspace n$ $For \enspace a =7, b=17 \enspace and \enspace n=561.$ what is the value of $a^b(mod\enspace n)$ ? 160 166 157 67
Let A be a 3x3 real matrix. Suppose 1 and -1 are two of the three Eigen values of A and 18 is one of the Eigen values of $A^2 + 3A$. Then. a) Both A and $A^2 + 3A$ are invertible b) $A^2 + 3A$ is invertible but A is not c) A is invertible but $A^2 + 3A$ is not d) Both A and $A^2 + 3A$ are not invertible