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Greatest number = 89999996
Smallest number = 80000006
Difference=9999990
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Bunuel
The positive difference between the greatest and the least numbers of eight digits which begin with 8 and end with 6 is

(A) 99,999,990
(B) 80,000,006
(C) 10,000,000
(D) 9,999,990
(E) 9,000,000
Solution:

The greatest 8-digit number which begins with 8 and ends with 6 is 89,999,996, and the smallest such number is 80,000,006. Therefore, their difference is 9,999,990.

Answer: D
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