Speeds (in m/sec) of A and B are
9 / 2 * 5 / 18 = 5 / 4 and 6 * 5 / 18 = 5 / 3, respectively.
A has a start of 190 m.
So, A has to run 1000 - 190 = 810 m, while B 1000 m.
Time taken by B to cover 1000 m = 3 5 × 1000 = 600 seconds.
In this time, A covers 5 × 600 / 4 = 750 m.
So, B reaches the winning post while A remains 810 - 750 = 60 m behind.
? B wins by 60 m.
Therefore, PID is not in the form of other patterns.
The words are DE, TERMINATION
OR
DETER, NATION
OR
TERM, NATION
The words are STAIN and LESS
9th letter from the right means (26 - 9 + 1 =) 18th letter from the left. Now, the middle letter between 18th letter from the left and 8th letter from the left = [(18+8)/2] = 13th leter from the left = M.
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