In the following list of numerals, how many 2's are followed by 1's but not preceded by 4 ? 4 2 1 2 1 4 2 1 1 2 4 4 4 1 2 2 1 2 1 4 4 2 1 4 2 1 2 1 2 4 1 4 2 1 2 4 1 4 6
In following number series, two terms have been put within brackets. Choose the appropriate option - Choose the appropriate option (2), 5, (12), 25, 41, 61
(i). A, B, C, D, E and F are six students in a class. (ii). B and C are shorter than F but heavier than A. (iii). D is heavier than B and taller than C. (iv). E is shorter than D but taller than F. (v). F is heavier than D. (vi). A is shorter than E but taller than F.
Who among them is the tallest ?