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Question
Postal Index Number consists of six digits. The first three digits are 6, 3, and 1. Make the largest and the smallest Postal Index Number by using the digits 0, 3 and 6, each only once.
Sum
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Solution
Given: PIN consists of six digits. First, three digits are 6, 3, and 1.
The digits 0, 3 and 6 to be used only once, in the remaining places.
Largest Postal Index Number – 631630
Smallest Postal Index Number – 631036
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