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The letters of the English alphabet are coded as follows:
For $$1 \leq n \leq 26$$, the $$n^{th}$$ letter is coded as the $$r^{th}$$ letter where r is the remainder obtained when 7n + 5 is divided by $$26 (1 \leq r \leq 26)$$. For decoding the reverse process is followed. Using this coding and decoding process, answer the questions.
The number of letters that remain unchanged after coding is
The string of letters that is coded as TIGER is
The string of letters that is coded as MYSON is
For the following questions answer them individually
Five bags A, B, C, D and E are piled one abovethe other. If A is above B, C is above D but below E, and D is above A, then which bagis in the middle?
The angle between the minutes hand and the seconds hand when it is 3 hr. 26 min. 25 sec. in a clock is
The number of seconds in $$\frac{11}{18}$$ of an hour is
How many times do the hours hand and minutes hand of a clock overlap between 1 AM and 11 PM?
A is the brother of B, B is the daughter of C, and D is the father of A. How is C related to D ?
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