Question

- Make the greatest and the smallest 7-digit
numbers using the digits 7, 3, 6, 5, 8, and 9. you may repeat a digit

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Answer 1

Answer:

Let the 9 is greatest decimal digit, the greatest 7− digit number would begin with as many nines as possible.

Since there must be 3 different digits in the 7− digits number,

Let begin with five nines and fill the last two places with 8 and 7.

The smallest seven digit number is 1000000

But we need three different digits it will be 1000002

Now,

Let find their sum =9999987+1000002=10999989.

Step-by-step explanation:

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Answer 2

Answer:

Greatest = 99,87,653

Smallest = 33,56,789

Step-by-step explanation: