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Please answer these with solutions.
Write in copy and send it here all solutions.
Please
Please
Please
No unnecessary answers otherwise I will report your answer.
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Answer:An intelligence agency forms a code of two distinct digits selected from 0, 1, 2, …. 9 such that the first digit of the code is non-zero. The code hand written on a slip, can however potentially create confusion, when read upside down for example, the code 91 may appear as 16. Let N be the number of codes for which no such confusion can arise. Find sum of digits of N.
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