Solve the SCRA Exam Question Paper of the previous year. Prepare better.
2. If Tr=Vr+1-Vr-2, r=1,2,3,... where Vr is the sum of the first r terms of an AP whose first term is r and common difference is (2r-1), then Tr is always
(a) prime and odd
(b) composite and odd
(c) composite and even
(d) odd but not prime
4. For bwhat values of x and y. the expression (|z|2+|z-5|2-|z-zi|2) where z=x+iy, assumes minimum value ?
(a) x=5, y=-3
(b) x=-5, y=3
(c) x=3, y=-5
(d) x=-3, y=5
6. what is the number of integral points (integral points means both coordinates must be integers exactly in the interior of the traiangle with vertices (0,0) (0,21) and (21,0) ?
7. A man has 7 relatives, 4 women and 3 men. His wife also has 7 relatives, 3 women and 4 men. What is the number of ways can they invite 3 women and 3 men so that 3 of them are the man's relatives and 3 of them are his wife's relatives ?
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